Disable PNO Watchdog Timer in U+ and make it less aggressive in <=T

With Software PNO in place and given the stability of HW PNO,
it is no longer crucial to have the WDT as a backup for standby scanning

Updated-Overlayable: TRUE
Test: manual, atest
Bug: 179283729, 200904400
Change-Id: Idfa7ee2872ffe4db87bbec270bb86634120b881b
4 files changed