Shorten priority alarm delay to 1 min.

Decrease the amount of time that we delay priority alarms from 9 minutes
to 1 minute. This is required for setPrioritized alarms to function
reliably in doze mode.

Test: atest CtsAlarmManagerTestCases; atest AlarmManagerServiceTest

Flag: EXEMPT No client currently uses the API setPrioritzed. The usage
will be rolled out in a controlled manner.

Bug: 434203621
Change-Id: I7b9094dc9a38d3fa36e66fa78b24b6fe1e82c83b