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

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

Change-Id: I5fbfa8967885b683e498fe670a0c36d58d4b44e7
Signed-off-by: Ju He <juhe@codeaurora.org>