media: Fix cts issues related to VideoEncoderDecoderTest

-Synchronize color conversion calls
 (from I333f1fa9a922e456f886f5b3d8081baa7ad53a4e)
-Add YUV420SP color format support
 (from I4085d2e9c268e839d78f9bf4ff444de68278d272)
-Allow 16-bit stride for NV12 format
 (from I5e42606a05dfb7ef55ea1eb1f06f581d23e123dd)
-Add proper stride2 value for tile format

Change-Id: I04387fefa71cc756b14bde75dfeeb051c827dac9