SnapdragonCamera: Fix savepath set to SD card crash

Fix crash issue when fix savepath is set to SD card and
the app is restarted. This is due to not updating storage
information. When the module starts up, we need to call storage
update so that it will set to proper initial value, not causing
crash.
Also only update focus UI when AF state is not null.

Change-Id: I1a3e444b42eb988ed622d047b1f3dc42bec7a119
CRs-Fixed: 1018118
1 file changed