CHERRY-PICK: nocturne : Add logging for base detect voltages.
CHERRY-PICK: nocturne : Add logging for base detect voltages.

It's kind of handy to know what the voltage was when we decided to
change major states.

BUG=None
BRANCH=firmware-nocturne-10984.B
TEST=Flash nocturne; attach and detach base and verify voltages are
printed when the state changes.

Signed-off-by: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/1295297
Commit-Queue: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>
Tested-by: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>
Reviewed-by: Furquan Shaikh <6be5c96c464778f89679b1062a2e0a6af93d2aa5@chromium.org>
Change-Id: I27ed42f46344c712171d05c11f36ae2f949040f6
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2160868
Reviewed-by: Aseda Aboagye <12c9b286316a940fd31c24070da5ab64cdd4d0e7@chromium.org>
Tested-by: Patryk Duda <6aed17a362577cf10cb5675888c1635d522769c1@semihalf.com>
Commit-Queue: Patryk Duda <6aed17a362577cf10cb5675888c1635d522769c1@semihalf.com>

coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec,coreboot/chrome-ec