msm: camera_v2: Don't touch CCI if camera daemon crashed.

If daemon crashes, refrain from writing to the CCI. This is needed
because these writes will not wait in a process crash scenario and can
potentially leave the CCI in a bad state.

Change-Id: Ic523c7e6c5ca891a322b8219234d8f04515394f3
Signed-off-by: Satyavaraprasad Yerramsetti <satyav@codeaurora.org>