Add AOD fold animation

When folding the device and entering AOD, keyguard
should fade in from the side and not the top as is
the default.

Bug: 346325723
Test: atest GoneToAodTransitionViewModelTest
Flag: com.android.systemui.migrate_clocks_to_blueprint
Change-Id: Ie754bf839c7121a3bd5a85a878c379021804e47c