h264: CB2 fix stuck caused by deadlock when alloc buffer fail [1/1]

PD#SWPL-191802
PD#SWPL-196070
PD#SWPL-196191
PD#SWPL-196365

Problem:
when H.264 alloc buffer fail, quit without release lock,
caused stuck.

Solution:
release lock to fix the quit logic when alloc buffer fail.

Verify:
T3X/T6D

Change-Id: Ic77f722c9a928d9d31895d543ca06e7352a42949
Signed-off-by: xiaohang.cui <xiaohang.cui@amlogic.com>
2 files changed