At startup, iOS will report UIDeviceOrientationUnknown for the device
orientation, which toQtScreenOrientation() maps to portrait. We can be
smarter than that, by falling back to the orientation of the statusbar,
which in most cases match the physical orientation of the screen at
startup, unless the Info.plist file has been modified to limit the
possible orientations. See also:
https://gist.github.com/torarnv/40c1931205e33d2b1ed3
Change-Id: I5c78fbe5c670ed2909a51b478bd4814e2433554f
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@theqtcompany.com>
13c491e6c8