openvino: enable npu/gpu support

CPU/NPU support only exists in Intel CPUs, but Intel GPUs can very well
be used on aarch64-linux platforms.

NPU previously failed to build, but after a recent opencv fix this became
possible.

pkgs/by-name/op/openvino/package.nix

@@ -104,7 +104,7 @@ stdenv.mkDerivation rec {
     "-Wno-dev"
     "-DCMAKE_MODULE_PATH:PATH=${placeholder "out"}/lib/cmake"
     "-DCMAKE_PREFIX_PATH:PATH=${placeholder "out"}"
-    "-DOpenCV_DIR=${opencv}/lib/cmake/opencv4/"
+    "-DOpenCV_DIR=${lib.getLib opencv}/lib/cmake/opencv4/"
     "-DProtobuf_LIBRARIES=${protobuf}/lib/libprotobuf${stdenv.hostPlatform.extensions.sharedLibrary}"
     "-DPython_EXECUTABLE=${python.interpreter}"
 
@@ -117,7 +117,8 @@ stdenv.mkDerivation rec {
 
     # features
     (cmakeBool "ENABLE_INTEL_CPU" stdenv.hostPlatform.isx86_64)
-    (cmakeBool "ENABLE_INTEL_NPU" false) # undefined reference to `std::ios_base_library_init()@GLIBCXX_3.4.32'
+    (cmakeBool "ENABLE_INTEL_GPU" true)
+    (cmakeBool "ENABLE_INTEL_NPU" stdenv.hostPlatform.isx86_64)
     (cmakeBool "ENABLE_JS" false)
     (cmakeBool "ENABLE_LTO" true)
     (cmakeBool "ENABLE_ONEDNN_FOR_GPU" false)
@@ -148,7 +149,7 @@ stdenv.mkDerivation rec {
     libusb1
     libxml2
     ocl-icd
-    opencv.cxxdev
+    opencv
     pugixml
     snappy
     tbb_2022_0