ARM: rmobile: Switch to CONFIG_RENESAS_SDHI

Since the Renesas SDHI has it's own custom driver sharing the
common code with Uniphier one, adjust the Kconfig entries.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/configs/porter_defconfig b/configs/porter_defconfig
index 7c58b13..3e0900e 100644
--- a/configs/porter_defconfig
+++ b/configs/porter_defconfig
@@ -73,7 +73,7 @@
 CONFIG_DM_I2C=y
 CONFIG_SYS_I2C_RCAR_IIC=y
 CONFIG_DM_MMC=y
-CONFIG_MMC_UNIPHIER=y
+CONFIG_RENESAS_SDHI=y
 CONFIG_SPI_FLASH=y
 CONFIG_SPI_FLASH_BAR=y
 CONFIG_SPI_FLASH_SPANSION=y