ec/starlabs/merlin: Unconditionally enable the Keyboard Backlight
KBL_STATE was originally intended to provide more granular control
of the keyboard backlight. However, KBL_BRIGHTNESS has a valid value
of "off" which achieves the same thing.
Therefore, unconditionally set the KBL_STATE to enabled, and rely on
KBL_BRIGHTNESS.
Change-Id: Ic7ee6b96b1dcaa6633b111e92097bce87908885e
Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77201
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>