Intel Media 2020Q3 release

Bump up version to 20.3.0

Change-Id: I65048aad24be782f9d767784fd9c4cdf10a6342f

Author: Sherry-Lin

CMakeLists.txt

@@ -20,7 +20,7 @@
 
 cmake_minimum_required(VERSION 3.5)
 
-set(MEDIA_VERSION "20.3.pre${MEDIA_VERSION_EXTRA}" CACHE STRING "" FORCE)
+set(MEDIA_VERSION "20.3.0${MEDIA_VERSION_EXTRA}" CACHE STRING "" FORCE)
 
 include(os_release_info.cmake)