Clear mInheritedCompatDisplayInsets when clearing size compat mode

Translucent activities inherit the compatDisplayInsets of the first opaque activity beneath them, so they can go into an infinite loop of clearing size compat mode because they would appear to be in size compat mode indefinitely. To fix this we will also clear the compatDisplayInsets of the opaque activity when clearing size compat mode for the translucent activity.

Fix: 273768507
Test: Manual with test app
Test: atest WmTests:SizeCompatTests#testTranslucentActivity_clearSizeCompatMode_inheritedCompatDisplayInsetsCleared
Change-Id: I84c42872cc4fad296a069960f2b1983dfab25bfc