msm: camera: ope: Remove the BW & clock vote in release context

Remove the BW and clock votes while releasing the context.
This will make sure that once the context is free then
it's BW and clock votes doesn't get added to another context.

CRs-Fixed: 2595319
Change-Id: Ibea9ac9e763dff7de6cf833ce132ef5041fb04f4
Signed-off-by: Alok Chauhan <alokc@codeaurora.org>