Check physical upside down for seamless rotation

The "UpsideDown" field of DisplayRotation stands for reverse portrait.
So the general up side down rotation should be ROTATION_180.

Also move up the condition of movable navigation bar, which should
have higher priority to allow seamless rotation. Because it also
means that upside down is supported.

Fixes: 229671538
Test: atest DisplayRotationTests#testShouldRotateSeamlessly
Change-Id: I9165f44b42fd058cb52753ecdf3cb98789c675d2