Implement google_chromeec_lightbar_on() to allow the host to
explicitly enable the Chrome EC lightbar. This function sends the
LIGHTBAR_CMD_ON sub-command through the EC_CMD_LIGHTBAR_CMD
host command.
BUG=None
TEST=Verified lightbar can be re-enabled after being turned off on
supported hardware.
Change-Id: I838525ba091281fefb3b6a33b9974037d06706d4
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91381
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kapil Porwal <kapilporwal@google.com>