Include Rect.h explictly

After freezing android.hardware.graphics.common, PlaneLayout.h doesn't
include Rect.h because header by redunant import is omitted.
(b/153527738)

So include Rect.h explictly

Test: m
Bug: 153510960
Change-Id: If513d1339452916d01b6571f0253d7da9fddea49
1 file changed