Allow UDFPS to be triggerd from AOD_PAUSED state

And from the AOD_PAUSING state.

So if users immediately attempt UDFPS right after
the prox sensor has become unblocked, the
authentication will still go through rather than
being dropped. The UDFPS longpress gesture is also
prox gated (by the sensor), so this is a safe change.

Test: programmatically set DOZE_AOD_PAUSED and see that UDFPS
longpress can still be triggered when prox isn't blocked
Test: atest DozeTriggersTest
Fixes: 244011650
Change-Id: Ic4f7956cb6082bec5c55d5177c8546e12b969378