mb/starlabs/starfighter: Add CFR options for power/charge LED brightness

Add CFR options to expose EC controls to set the brightness of the
power and charge LEDs (normal/dim/off).

TEST=build/boot starfighter_mtl, verify LED control via CFR

Change-Id: I2af8372f923f92af62e48da77d4bddb87ab1eba0
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/90565
Reviewed-by: Sean Rhodes <sean@starlabs.systems>
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/mainboard/starlabs/starfighter/cfr.c

@@ -37,6 +37,8 @@ static struct sm_obj_form power = {
 		#if CONFIG(EC_STARLABS_CHARGING_SPEED)
 		&charging_speed,
 		#endif
+		&power_led,
+		&charge_led,
 		&power_on_after_fail_bool,
 		NULL
 	},