vh265: fix h265 playback freeze issue in frame mode with kodi [1/1]

vh265: fix h265 playback freeze issue in frame mode with kodi [1/1]

PD#SWPL-37390

Problem:
with Kodi, this stream will send I frame with eos nal in head of
chunk. decode  will idscard all frame data once meet eos nal.
it will cause I frame missed

Solution:
in frame mode, decoder will check shiftbytes and  decode size when
eos nal meet. if eos nal in the beginning of the chunks. don't skip
the left data, go on decoding

Verify:
AC214

Signed-off-by: Hui Zhang <hui.zhang@amlogic.com>
Change-Id: I7900df3cfaa70811c5d9d52df0c68fa6616f36d4