Get battery presence at setup, if possible.

TARE may go through "boot" setup when it's enabled after boot. Checking
the battery presence during setup would help ensure proper behavior on a
battery-less devic (that may not send another BATTERY_CHANGED broadcast
after the very first one).

Bug: 240726265
Test: flash device and check TARE and JobScheduler dumps
Change-Id: I7e575f2b6a8f7624e5bdcf33112fbd928ebd9abc