media: venus: Correct P010 buffer alignment

According to msm_media_info.h the correct alignment
for the stride of P010 buffers is 128.

Signed-off-by: Fritz Koenig <frkoenig@chromium.org>
Reviewed-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Signed-off-by: Stanimir Varbanov <stanimir.k.varbanov@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>