Moved tests which failed under Robolectric

The other test that was failing (systemui/accessibility/MagnificationModeSwitchTest.java) was moved from multivalentTests back to tests in ag/29573549

Bug: 369575544
Flag: TEST_ONLY
Test: tested manually with atest
Change-Id: I370c08b77798cb059281e92536e6b0040b55713d
3 files changed