Ubuntu 22.04 - dev package updates (#262)

* FindLibDRM - Remove temp pick from /usr

* Ubuntu 22.04 - Add C++-12 dev package

* Revert - Find LibDRM Fix

CMakeLists.txt

@@ -186,11 +186,18 @@ if(HIP_FOUND AND Libva_FOUND AND Libdrm_FOUND)
     set(CPACK_PACKAGE_VERSION "${CPACK_PACKAGE_VERSION}.$ENV{ROCM_LIBPATCH_VERSION}")
   endif()
 
+  # Find Ubuntu 22.04 - Add libstdc++-12-dev package deps for Dev Package
+  file(READ "/etc/os-release" OS_RELEASE)
+  string(REGEX MATCH "22.04" UBUNTU_22_FOUND ${OS_RELEASE})
+
   # Set the dependent packages
   set(rocDecode_DEBIAN_PACKAGE_LIST  "rocm-hip-runtime, mesa-amdgpu-multimedia")
   set(rocDecode_RPM_PACKAGE_LIST     "rocm-hip-runtime, mesa-amdgpu-multimedia")
   # Set the dev dependent packages - TBD: mesa-amdgpu-multimedia-devel name will be changed to -dev
   set(rocDecode_DEBIAN_DEV_PACKAGE_LIST  "rocm-hip-runtime-dev, mesa-amdgpu-multimedia-devel, pkg-config, ffmpeg, libavcodec-dev, libavformat-dev, libavutil-dev")
+  if(UBUNTU_22_FOUND)
+    set(rocDecode_DEBIAN_DEV_PACKAGE_LIST "${rocDecode_DEBIAN_DEV_PACKAGE_LIST}, libstdc++-12-dev")
+  endif()
   # TBD - RPM packages need Fusion Packages - "ffmpeg, libavcodec-devel, libavformat-devel, libavutil-devel"
   set(rocDecode_RPM_DEV_PACKAGE_LIST  "rocm-hip-runtime-devel, mesa-amdgpu-multimedia-devel, pkg-config")
   

README.md

@@ -95,6 +95,8 @@ sudo yum install rocdecode rocdecode-devel rocdecode-test
 sudo zypper install rocdecode rocdecode-devel rocdecode-test
 ```
 
+**NOTE:** `RHEL`/`SLES` package install requires manual `FFMPEG V4.X` dev install
+
 ### Source build and install
 
 ```shell