msm: vidc: add sanity checks for clocks and regulators

Add sanity checks before and after clocks and regulator
operations to get more information if these operations
not functional as expected.

Change-Id: Ib4985113200ed065e6acf6cb7ae406b88cc7f432
Signed-off-by: Maheshwar Ajja <majja@codeaurora.org>