SF: Add support for inverse mounted panels

Add 180 rotation in SF to account for inverse mounted panels.
The framework will be unaffected and use policies for a 0 mounted
panel. SF changes the global transform and silently induces the H,V
flips. Similar flips are added to screenshots as well.

Change-Id: I6e9576ee734ee85097491eaa1e8e94cfb3731e0f