msm: camera: Bound check num_cid from userspace in csid driver

Upper and lower bound checks are enforced for num_cid
which is passed from userspace with lower as 1 and
max of 16.

Change-Id: Ic5456289cb2f2b4ea17610a7672eb2c5225b7954
Signed-off-by: Hariram Purushothaman <hpurus@codeaurora.org>