This removes overlap between onewire_led.c (LED on link cable) and
powerled.c (LED on snow power button), which had the same names but
did different things.
No functional changes, just renaming.
BUG=chrome-os-partner:18343
BRANCH=none
TEST=build link
Change-Id: I711f1a7e4e5512d1923872cb0f19d64be153c7c5
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/47420