ARM: rmobile: Switch to UniPhier SD driver on Gen3

The UniPhier SD driver handles the same Matsushita IP as is used
in the Renesas RCar SoCs, yet the driver is significantly better
than the SH SDHI one. Switch over to the Uniphier driver.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/configs/r8a7796_ulcb_defconfig b/configs/r8a7796_ulcb_defconfig
index 0c4dd58..b0437ec 100644
--- a/configs/r8a7796_ulcb_defconfig
+++ b/configs/r8a7796_ulcb_defconfig
@@ -30,7 +30,7 @@
 CONFIG_CLK=y
 CONFIG_CLK_RENESAS=y
 CONFIG_DM_MMC=y
-CONFIG_SH_SDHI=y
+CONFIG_MMC_UNIPHIER=y
 CONFIG_DM_ETH=y
 CONFIG_RENESAS_RAVB=y
 CONFIG_SCIF_CONSOLE=y