Camera: Disable DIS option for unsupported resolution

DIS will not work for unsupported resolution.
If user'll start recording with DIS alongwith 720p resolution
using front camera, then it'll crash.

Fix: Block in UI, so that user'll not be able to select DIS with
unsupported resolution after intimating through toasts.

Change-Id: Ie788d456a7b15061f16a44ca34ccd3d1e6d90071
CRs-Fixed: 644268