plugins: Enable QSV only on x86_64 architecture

Intel stack is only completely buildable on x86_64 architectures.

plugins/CMakeLists.txt

@@ -62,7 +62,11 @@ if(OBS_CMAKE_VERSION VERSION_GREATER_EQUAL 3.0.0)
   add_obs_plugin(obs-filters)
   add_obs_plugin(obs-libfdk)
   add_obs_plugin(obs-outputs)
-  add_obs_plugin(obs-qsv11 PLATFORMS WINDOWS LINUX)
+  add_obs_plugin(
+    obs-qsv11
+    PLATFORMS WINDOWS LINUX
+    ARCHITECTURES x64 x86_64
+    WITH_MESSAGE)
   add_obs_plugin(obs-text PLATFORMS WINDOWS)
   add_obs_plugin(obs-transitions)
   add_obs_plugin(