UPSTREAM: google/poppy: Enable PD MCU device

In order for PD charge events to properly notify the OS when a charger is
attached we need to enable the PD MCU device and event source from the EC.

Without this change the charging still happens, but the OS does not notice
and update the charge state icon in the Chrome OS UI.

BUG=b:35586577
BRANCH=none
TEST=On a poppy board that has the VBUS rework applied, plug in a charger to
either port and see charge status updated to indicate charging in the
power_supply_info tool and the Chrome OS UI.

Change-Id: I07ca5d7383e5e6b014a6b35c2b7c5ba6edd1234e
Signed-off-by: Patrick Georgi <pgeorgi@chromium.org>
Original-Commit-Id: bb368db2a4
Original-Change-Id: I59dcfc1cb5d11841f56cac7f4ffe461c2f9ec52a
Original-Signed-off-by: Shamile Khan <shamile.khan@intel.com>
Original-Reviewed-on: https://review.coreboot.org/19441
Original-Reviewed-by: Furquan Shaikh <furquan@google.com>
Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Original-Tested-by: build bot (Jenkins)
Reviewed-on: https://chromium-review.googlesource.com/490073
Commit-Ready: Furquan Shaikh <furquan@chromium.org>

src/mainboard/google/poppy/variants/baseboard/include/baseboard/ec.h

@@ -34,6 +34,7 @@
 	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_THERMAL_OVERLOAD)  |\
 	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_THROTTLE_START)    |\
 	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_THROTTLE_STOP)     |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_PD_MCU)            |\
 	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_MKBP))
 
 #define MAINBOARD_EC_SMI_EVENTS \
@@ -66,6 +67,9 @@
 /* Enable EC backed ALS device in ACPI */
 #define EC_ENABLE_ALS_DEVICE
 
+/* Enable EC backed PD MCU device in ACPI */
+#define EC_ENABLE_PD_MCU_DEVICE
+
 /* Enable LID switch and provide wake pin for EC */
 #define EC_ENABLE_LID_SWITCH
 #define EC_ENABLE_WAKE_PIN	GPE_EC_WAKE