msm: camera: Add in-sensor mode support for eeprom

Add in-sensor mode calibration support for eeprom.
User are able to the back calibration settings
via i2c interface of the sensor.

Change-Id: I9332ea08f1100bed44c00ac455d07d8ea2b2ee27
Signed-off-by: Wei Ding <weiding@codeaurora.org>