-Fix VP8 encoded video has mosaic when seek
-Fix video not smooth at the begining
-Fix 1080p h264 encode video has mosaic
-Fix gplay segfault when CMA free is low
-Fix vpu crash in secure mode
-Fix av unsync when play a vp8 stream
-Refine bit rate calculation,use width, height and frame rate to adjust bitrate
-Enable prependSPSPPSToIDRFrames so that each IDR frame has
sps/pps and the encoded h264 stream can play in multi ts files
-Add RGB input support for vpu encoder plugin
