h264: CB1 fix h264 crash in h264_slice_header_process. [1/1]

PD#SWPL-193724

Problem:
h264 dec_picture is clear when using.

Solution:
add mutex lock for dec_picture clear.

Verify:
sc2

Change-Id: I3b4e6c374003e5a5c7cf94c43f0875d4969626f2
Signed-off-by: shihong.zheng <shihong.zheng@amlogic.com>
2 files changed