mb/google/guybrush: allow MKBP devices and disable TBMC device

Enable MKBP (Matrix Keyboard Protocol) interface for all guybrush family
to use for buttons and switches. Disable TBMC (Tablet Mode Switch
device), as it is not needed anymore.

BUG=b:227240985
BRANCH=guybrush
TEST=manual test on Dewatt:
     Volume Up/Down and Power buttons, Tablet Mode switch

Signed-off-by: Kenneth Chan <kenneth.chan@quanta.corp-partner.google.com>
Change-Id: Ic9980f2b5bf10b12f2bd666212b5bce925dc323d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/63394
Reviewed-by: Rob Barnes <robbarnes@google.com>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
Reviewed-by: Jon Murphy <jpmurphy@google.com>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/guybrush/variants/baseboard/include/baseboard/ec.h b/src/mainboard/google/guybrush/variants/baseboard/include/baseboard/ec.h
index 2ce5fd5..5695a8e 100644
--- a/src/mainboard/google/guybrush/variants/baseboard/include/baseboard/ec.h
+++ b/src/mainboard/google/guybrush/variants/baseboard/include/baseboard/ec.h
@@ -54,13 +54,13 @@
 /* Set GPI for SCI */
 #define EC_SCI_GPI GEVENT_24 /* eSPI system event -> GPE 24 */
 
+/* Enable MKBP for buttons and switches */
+#define EC_ENABLE_MKBP_DEVICE
+
 /* Enable LID switch and provide wake pin for EC */
 #define EC_ENABLE_LID_SWITCH
 #define EC_ENABLE_WAKE_PIN GEVENT_3 /* AGPIO 22 -> GPE 3 */
 
-/* Enable Tablet switch */
-#define EC_ENABLE_TBMC_DEVICE
-
 #define SIO_EC_MEMMAP_ENABLE /* EC Memory Map Resources */
 #define SIO_EC_HOST_ENABLE   /* EC Host Interface Resources */
 #define SIO_EC_ENABLE_PS2K   /* Enable PS/2 Keyboard */