mmc: mediatek: permit to also build for Airoha arch

Airoha new SoC implement the same Mediatek driver for MMC. Permit to
also build for Airoha arch.

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
diff --git a/drivers/mmc/Kconfig b/drivers/mmc/Kconfig
index 3ea665d..38867f3 100644
--- a/drivers/mmc/Kconfig
+++ b/drivers/mmc/Kconfig
@@ -871,7 +871,7 @@
 
 config MMC_MTK
 	bool "MediaTek SD/MMC Card Interface support"
-	depends on ARCH_MEDIATEK || ARCH_MTMIPS
+	depends on ARCH_MEDIATEK || ARCH_MTMIPS || ARCH_AIROHA
 	depends on OF_CONTROL
 	help
 	  This selects the MediaTek(R) Secure digital and Multimedia card Interface.