msm: camera: sensor: Add msm_camera_i2c_reg_setting_array

Add new structure msm_camera_i2c_reg_setting_array
to send the test pattern settings from userspace.

Change-Id: I9634dd1454814264e4d2f24ab9022371b8d5dddd
Signed-off-by: Rajesh Bondugula <rajeshb@codeaurora.org>