mb/google/asurada: Enable RTC for event log

BUG=b:177399759
TEST=firmware_EventLog passed on asurada
BRANCH=none

Change-Id: I759f9030f525fa9e34ed542198a9dba8f25909f5
Signed-off-by: Yu-Ping Wu <yupingso@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49453
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>

src/mainboard/google/asurada/Kconfig

@@ -12,6 +12,7 @@ config VBOOT
 
 config BOARD_SPECIFIC_OPTIONS
 	def_bool y
+	select RTC
 	select SOC_MEDIATEK_MT8192
 	select BOARD_ROMSIZE_KB_8192
 	select MAINBOARD_HAS_CHROMEOS

src/soc/mediatek/mt8192/Makefile.inc

@@ -58,6 +58,8 @@ ramstage-y += ../common/mcu.c
 ramstage-y += mcupm.c
 ramstage-y += ../common/mmu_operations.c mmu_operations.c
 ramstage-y += ../common/mtcmos.c mtcmos.c
+ramstage-y += pmif.c
+ramstage-y += ../common/rtc.c rtc.c
 ramstage-y += soc.c
 ramstage-y += spm.c
 ramstage-y += sspm.c