superio: Log if mouse controller is disabled

It’s useful to know, if the mouse controller is disabled or not, so
convert the comment to a log message.

Change-Id: Ic3f7d5b7b98cf8c258a6a601f4a44ce403f4a576
Signed-off-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-on: https://review.coreboot.org/22285
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/superio/winbond/w83667hg-a/superio.c b/src/superio/winbond/w83667hg-a/superio.c
index 9ffbefe..1a3be44 100644
--- a/src/superio/winbond/w83667hg-a/superio.c
+++ b/src/superio/winbond/w83667hg-a/superio.c
@@ -57,7 +57,8 @@
 		mouse_detected = pc_keyboard_init(PROBE_AUX_DEVICE);
 
 		if (!mouse_detected && !acpi_is_wakeup_s3()) {
-			/* Disable mouse controller */
+			printk(BIOS_INFO, "%s: Disable mouse controller.",
+					__func__);
 			pnp_enter_conf_mode_8787(dev);
 			byte = pnp_read_config(dev, 0x2a);
 			byte |= 0x1 << 1;