Fix for half blank screen during App resume

Activity handling config changes is launched and
rotated to landscape mode. Device is suspended
(power key press) and then rotated to potrait mode
and resumed(power screen press to screen on). Now
when keyguard is unlocked the Activity UI is
corrupted for some time before recovering. Some
devices we see  half blank screen, on Nexus we see
Half of the UI is corrupted( tried with chrome app)

The root cause for the issue is that when the device
in landscape the activity layout is set to landscape.
Now after suspending the device and changing the
orientation to potrait this activity relayout and draw
to potrait is not done since mStopped is true(behind
the keyguard view). The change in gerrit overrides
this condition and we dont see the issue.
Signed-off-by: Shasidhar Ganiga <sganig@codeaurora.org>

Change-Id: Ifdf8d1ff4ac523da652b5d192217c7cf4918eadf