Make "am set-standby-bucket" reset active/working left time

This is needed for manual testing the fix for b/72443754.

Test: atest cts/tests/tests/app.usage/src/android/app/usage/cts/UsageStatsTest.java
Test: atest cts/tests/tests/batterysaving
Bug: 72443754
Change-Id: I13ac03917c0a5a08859c44930406e7a82ebf1a07