Revert "v510: 5.0 change"

This reverts commit 6a60de2cf0a27ff383be2e6a25167f241d8c23e7.
Revert "msm: vidc: cache-invalidate encoder output buffers after alloc"

This reverts commit e77780c3bc5d122b7158086e0e0b5848bee05c58.