soc/mediatek/mt8192: Add mtcmos init support

Using common mtcmos code to power on audio and display modules in SOC.

TEST=Boots correctly on MT8192EVB. Passes the status check at the end of
     mtcmos_power_on()

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Change-Id: Ie7bff831eecfc2b4d315a577f6ff86befc483eab
Reviewed-on: https://review.coreboot.org/c/coreboot/+/45394
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/soc/mediatek/mt8192/Makefile.inc b/src/soc/mediatek/mt8192/Makefile.inc
index 01db141950..8f37c7b51d 100644
--- a/src/soc/mediatek/mt8192/Makefile.inc
+++ b/src/soc/mediatek/mt8192/Makefile.inc
@@ -27,6 +27,7 @@ ramstage-y += flash_controller.c
 ramstage-y += ../common/gpio.c gpio.c
 ramstage-y += emi.c
 ramstage-$(CONFIG_SPI_FLASH) += ../common/spi.c spi.c
+ramstage-y += ../common/mtcmos.c mtcmos.c
 ramstage-y += soc.c
 ramstage-y += ../common/timer.c
 ramstage-y += ../common/uart.c