feat(detectors): add Qualcomm Hexagon NPU support (community board)

Add a community-supported board build for Qualcomm SoCs with a Hexagon
NPU, accelerating TFLite object detection through the QNN TFLite delegate
on the Hexagon Tensor Processor (HTP).

Supported boards:
- IQ9100 (IQ-9075 EVK)
- QCS6490 (RB3 Gen 2 Vision Kit / Rubik Pi 3)

- detector: new `qualcomm_tfl` plugin loading libQnnTFLiteDelegate.so on
  the HTP backend, reusing the shared TFLite delegate helpers
- docker: `docker/qualcomm` board build (Dockerfile, qualcomm.hcl,
  qualcomm.mk) producing the arm64 `-qualcomm` image
- cdi: per-board Container Device Interface descriptors and an install
  helper exposing the NPU device nodes and QNN libraries to the container
- ci/codeowners: register the qualcomm build target and code owner
- docs: installation, hardware, and object detector documentation, using
  the shared model config dropdown component
- i18n: add the Qualcomm detector label and description to the generated
  en config locale

Signed-off-by: Rami Mouro <rmouro@qti.qualcomm.com>

docker/qualcomm/Dockerfile

@@ -0,0 +1,21 @@
+# syntax=docker/dockerfile:1.6
+
+# https://askubuntu.com/questions/972516/debian-frontend-environment-variable
+ARG DEBIAN_FRONTEND=noninteractive
+
+# Globally set pip break-system-packages option to avoid having to specify it every time
+ARG PIP_BREAK_SYSTEM_PACKAGES=1
+
+FROM wheels AS qualcomm-wheels
+ARG TARGETARCH
+
+# No extra wheels needed — ai-edge-litert is already in the base image
+# and the QNN delegate library (libQnnTFLiteDelegate.so) is provided
+# by the host via CDI bind mounts at runtime.
+
+FROM deps AS qualcomm-deps
+ARG TARGETARCH
+ARG PIP_BREAK_SYSTEM_PACKAGES
+
+WORKDIR /opt/frigate/
+COPY --from=rootfs / /

docker/qualcomm/cdi/install_cdi.py

@@ -0,0 +1,51 @@
+import argparse
+import json
+import os
+
+parser = argparse.ArgumentParser(description="Install CDI on Dragonwing IoT boards")
+parser.add_argument("--file", type=str, required=True, help="CDI input file")
+args, unknown = parser.parse_known_args()
+
+if os.path.exists("/etc/cdi/cdi-hw-acc.json"):
+    print("/etc/cdi/cdi-hw-acc.json already exists. Remove it first before continuing.")
+    exit(1)
+
+if not os.path.exists(args.file):
+    print(f"{args.file} (via --file) does not exist")
+    exit(1)
+
+# Check if directory exists
+if not os.path.exists("/etc/cdi"):
+    # Check if we can create it in /etc
+    if not os.access(os.path.dirname("/etc/cdi"), os.W_OK):
+        print(
+            f"{os.path.dirname('/etc/cdi')} is not writable. Re-run this script with sudo."
+        )
+        exit(1)
+    os.mkdir("/etc/cdi")
+else:
+    # Directory exists → check if writable
+    if not os.access("/etc/cdi", os.W_OK):
+        print("/etc/cdi is not writable. Re-run this script with sudo.")
+        exit(1)
+
+with open(args.file, "r") as f:
+    cdi = json.loads(f.read())
+
+print("Finding missing mount paths...")
+for device in cdi["devices"]:
+    new_mounts = []
+
+    for mount in device["containerEdits"]["mounts"]:
+        if not os.path.exists(mount["hostPath"]):
+            print(f"    Missing {mount['hostPath']}")
+        else:
+            new_mounts.append(mount)
+
+    device["containerEdits"]["mounts"] = new_mounts
+
+print("")
+print("Writing to /etc/cdi/cdi-hw-acc.json...")
+with open("/etc/cdi/cdi-hw-acc.json", "w") as f:
+    f.write(json.dumps(cdi, indent=4))
+print("Writing to /etc/cdi/cdi-hw-acc.json OK")

docker/qualcomm/qualcomm.hcl

@@ -0,0 +1,27 @@
+target wheels {
+  dockerfile = "docker/main/Dockerfile"
+  platforms = ["linux/arm64"]
+  target = "wheels"
+}
+
+target deps {
+  dockerfile = "docker/main/Dockerfile"
+  platforms = ["linux/arm64"]
+  target = "deps"
+}
+
+target rootfs {
+  dockerfile = "docker/main/Dockerfile"
+  platforms = ["linux/arm64"]
+  target = "rootfs"
+}
+
+target qualcomm {
+  dockerfile = "docker/qualcomm/Dockerfile"
+  contexts = {
+    wheels = "target:wheels",
+    deps = "target:deps",
+    rootfs = "target:rootfs"
+  }
+  platforms = ["linux/arm64"]
+}

docker/qualcomm/qualcomm.mk

@@ -0,0 +1,15 @@
+BOARDS += qualcomm
+
+local-qualcomm: version
+	docker buildx bake --file=docker/qualcomm/qualcomm.hcl qualcomm \
+		--set qualcomm.tags=frigate:latest-qualcomm \
+		--load
+
+build-qualcomm: version
+	docker buildx bake --file=docker/qualcomm/qualcomm.hcl qualcomm \
+		--set qualcomm.tags=$(IMAGE_REPO):${GITHUB_REF_NAME}-$(COMMIT_HASH)-qualcomm
+
+push-qualcomm: build-qualcomm
+	docker buildx bake --file=docker/qualcomm/qualcomm.hcl qualcomm \
+		--set qualcomm.tags=$(IMAGE_REPO):${GITHUB_REF_NAME}-$(COMMIT_HASH)-qualcomm \
+		--push