fix: vcpkg, cmake, compatibility 3.5 (#11356)

Signed-off-by: fufesou <linlong1266@gmail.com>

res/vcpkg/mfx-dispatch/fix-pkgconf.patch

@@ -0,0 +1,39 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 9446bc4..a8a3288 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -3,16 +3,7 @@ cmake_minimum_required(VERSION 2.6)
+ project( libmfx )
+ 
+ # FIXME Adds support for using system/other install of intel media sdk
+-find_path ( INTELMEDIASDK_PATH mfx/mfxvideo.h
+-  HINTS "${CMAKE_SOURCE_DIR}"
+-)
+-
+-if (INTELMEDIASDK_PATH_NOTFOUND)
+-  message( FATAL_ERROR "Intel MEDIA SDK include not found" )
+-else (INTELMEDIASDK_PATH_NOTFOUND)
+-  message(STATUS "Intel Media SDK is here: ${INTELMEDIASDK_PATH}")
+-endif (INTELMEDIASDK_PATH_NOTFOUND)
+-
++set(INTELMEDIASDK_PATH "${CMAKE_CURRENT_LIST_DIR}")
+ 
+ set(SOURCES
+   src/main.cpp
+diff --git a/libmfx.pc.cmake b/libmfx.pc.cmake
+index fabb541..5d248fe 100644
+--- a/libmfx.pc.cmake
++++ b/libmfx.pc.cmake
+@@ -6,9 +6,9 @@ Requires.private:
+ Name: libmfx
+ Description: Intel Media SDK Dispatched static library
+-Version: 2013
++Version: 1.35
+ Requires:
+ Requires.private:
+ Conflicts:
+-Libs: -L${libdir} -lsupc++ ${libdir}/libmfx.lib
++Libs: -L${libdir} -llibmfx
+ Libs.private:
+-Cflags: -I${includedir} -I@INTELMEDIASDK_PATH@
++Cflags: -I${includedir}