Reduce the latency of BatterySaverAlarmTest

Reducing some timeouts and reducing the number of iterations
to speed up the test. This should make it easier to maintain
and debug.

Test: CtsBatterySavingTestCases:BatterySaverAlarmTest

Flag: TEST_ONLY

Bug: 399966290
Change-Id: I3ba4c502fdb2423893b2a3e62e3c8deadacc4d09
1 file changed