Camera: Add iso1600 entry to the existing iso values

Update the existing ISO value list with ISO1600 entry.

CRs-Fixed:236562

Change-Id: I0f8b07260807ffe4d90d633ce0d47a1e127ee1ac
Merge branch 'cm-10.1' of github.com:PecanCM/android_device_lge_p350 into cm-10.1