msm: camera: sensor: Add boundary check for cci master

Add boundary check for cci master in i2c_read.
This value is passed from userpsace. If user sends an
invalid number for master there is a possibility of
accessing unintended buffer.

This change addresses the issue.

Crs-Fixed: 1086764
Signed-off-by: Rajesh Bondugula <rajeshb@codeaurora.org>
Change-Id: Ice3bde902aea96382ceb4dfddfd28a5ea89c183d