Add information for battery presence

Copy this over from the EC code base so that volteer can detect its
battery,

BUG=b:175248556
TEST=build and boot on volteer (no actual test)

Cq-Depend: chromium:2600337
Change-Id: I6ba05ab09e23a2a5aaa8c4d5f13665ce58836dac
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/zephyr-chrome/+/2599491
Reviewed-by: Keith Short <keithshort@chromium.org>
Tested-by: Simon Glass <sjg@chromium.org>
Commit-Queue: Simon Glass <sjg@chromium.org>
3 files changed