De-assert the lightbar reset GPIO to be able to access its registers.
According to the HW guys, it will consume less power in standby than in
reset due the pull-up on the reset line.
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
BUG=None
TEST=manual
On Link proto-1, type "lightbar test" in the EC console and see it blink.
On BDS, just build it. Nothing actually changes for BDS.
Change-Id: I9ec612c80f48d41ccf779f0962fc047966d4b7ba