msm: camera: common: Remove division on uint64_t

Arm arch does not support dividing 64 bit integer, replacing it with
do_div call.
Fix variable type to work with both 32/64 bit arch.

CRs-Fixed: 2543730
Change-Id: I6b30f089bc998e98c7f2e20dc7fc11eedf6e6bc7
Signed-off-by: Chandan Kumar Jha <cjha@codeaurora.org>