mb/intel/glkrvp: Configure SCI/SMI in glkrvp for ESPI

This patch configures the EC_SCI_GPI when ESPI is enabled.Also adds
mainboard espi handler function.

TEST= Boot to OS and SMI/SCI is working when ESPI is enabled/disabled.

Change-Id: I2b3845d54ad7c1f14edc86f71b3f968424711999
Signed-off-by: Shaunak Saha <shaunak.saha@intel.com>
Reviewed-on: https://review.coreboot.org/22761
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/mainboard/intel/glkrvp/smihandler.c

@@ -50,3 +50,8 @@ int mainboard_smi_apmc(u8 apmc)
 					MAINBOARD_EC_SMI_EVENTS);
 	return 0;
 }
+
+void mainboard_smi_espi_handler(void)
+{
+	chromeec_smi_process_events();
+}

src/mainboard/intel/glkrvp/variants/baseboard/include/baseboard/gpio.h

@@ -22,7 +22,11 @@
  * GPIO_11 for SCI is routed to GPE0_DW1 and maps to group GPIO_GPE_N_31_0
  * which is North community
  */
+#if IS_ENABLED(CONFIG_SOC_ESPI)
+#define EC_SCI_GPI	GPE0A_ESPI_SCI_STS
+#else
 #define EC_SCI_GPI	GPE0_DW1_05
+#endif
 
 /* EC SMI */
 #define EC_SMI_GPI	GPIO_41