Rename getIgnoreOrientationRequest() to shouldIgnoreOrientationRequest()

Given that the behaviour of the ignoreOrientationRequest flag now depends on the
orientation we use, renaming getIgnoreOrientationRequest(int orientation) to
shouldIgnoreOrientationRequest(int orientation) adds clarity.

Fixes: 262366204
Test: atest WmTests:ActivityRecordTests WmTests:TaskTests WmTests:WindowContainerTests
Change-Id: I0dacaf0e5e582352000f3ec4d0678a74bec9bd57