msm: camera: icp: IPE and BPS interframe power collapse

Support is added for IPE and BPS interframe power
collapse. At the start of usecase transfer the control of
regualator to ICP hardware and get it back
at the end of usecase.

Change-Id: I561a5f71d4d5ce327bb1924638f2c7987d986a92
Signed-off-by: Suresh Vankadara <svankada@codeaurora.org>