msm: vidc: Invalidate the cache before processing metadata.

- Encoder output bit stream is getting corrupted if cache
  is not invalidated before meta data processing.
- ION_IOC_INV_CACHES is called before meta data processing
  to make sure physical data & cached data are the same.

CRs-Fixed: 358392
Change-Id: Ia4b827619e64b0bc60f74692993001e44b0bbcbe
Signed-off-by: Srinu Gorle <sgorle@codeaurora.org>
3 files changed