msm: camera: isp: Notify CRM to pause SOF timer after flush

Adding CRM interface to stop SOF timer from isp during flush.
During flush hardware is getting stop and will not send SOF
notification to CRM so need to pause SOF timer. Whenever SOF
timer will get expire,do not need to send error to UMD during
pause time.

CRs-Fixed: 2564389
Change-Id: I6d85f2c658c30dbe211f0ec9d83bca323a5c265b
Signed-off-by: Chandan Kumar Jha <cjha@codeaurora.org>