mm-video-v4l2: vidc: venc: Set V4L2_CID_MPEG_VIDC_SET_PERF_LEVEL control

Sets V4L2_CID_MPEG_VIDC_SET_PERF_LEVEL to driver during
camera recording usecase, that scales core clock to nominal
frequency and above to get some power savings

Change-Id: Ib45d90827e47921af36f399208e6ce4edef032f4
2 files changed