IKQCOMSD1-801 : bringup disp_util on msm8960

Add ioctls enabling mipi panel registers access

Change-Id: I8f20199c45fadfdfba42f124a8fe4074fec87217
Signed-off-by: Sergey Kudakov <sergey.kudakov@motorola.com>
Change-Id: I6c91fdd7b8c745754332dff7046fcb359061d0d5
Reviewed-on: http://gerrit.pcs.mot.com/326365
Tested-by: Jira Key <JIRAKEY@motorola.com>
Reviewed-by: Check Patch <CHEKPACH@motorola.com>
Reviewed-by: Klocwork kwcheck <klocwork-kwcheck@sourceforge.mot.com>
Reviewed-by: Bang Nguyen <bang.nguyen@motorola.com>
Reviewed-by: Jeffrey Carlyle <jeff.carlyle@motorola.com>