memset SPS to zero

SPS structure is memset to zero in parse_sps()
Bug: 33966031
Bug: 37458993

Change-Id: I7d4c04d2d25d7e9c8f581bd470260fc4394a564b
(cherry picked from commit 2e0e75aedef322baeb829bf5151aba312840ed40)
1 file changed