mmc: renesas-sdhi: Add Renesas SDHI Kconfig entry

Add Kconfig entry for the Renesas SDHI variant of the controller
and split the Makefile entries accordingly.
Signed-off-by: NMarek Vasut <marek.vasut+renesas@gmail.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>

drivers/mmc/Kconfig

@@ -267,13 +267,22 @@ config SH_SDHI
 	  Support for the on-chip SDHI host controller on SuperH/Renesas ARM SoCs platform
 
 config MMC_UNIPHIER
-	bool "UniPhier/RCar SD/MMC Host Controller support"
-	depends on ARCH_UNIPHIER || ARCH_RMOBILE
+	bool "UniPhier SD/MMC Host Controller support"
+	depends on ARCH_UNIPHIER
 	depends on BLK && DM_MMC
 	depends on OF_CONTROL
 	help
 	  This selects support for the Matsushita SD/MMC Host Controller on
-	  SocioNext UniPhier and Renesas RCar SoCs.
+	  SocioNext UniPhier SoCs.
+
+config RENESAS_SDHI
+	bool "Renesas R-Car SD/MMC Host Controller support"
+	depends on ARCH_RMOBILE
+	depends on BLK && DM_MMC
+	depends on OF_CONTROL
+	help
+	  This selects support for the Matsushita SD/MMC Host Controller on
+	  Renesas R-Car SoCs.
 
 config MMC_BCM2835
 	bool "BCM2835 family custom SD/MMC Host Controller support"

drivers/mmc/Makefile

@@ -62,5 +62,6 @@ obj-$(CONFIG_MMC_SDHCI_XENON)		+= xenon_sdhci.o
 obj-$(CONFIG_MMC_SDHCI_ZYNQ)		+= zynq_sdhci.o
 
 obj-$(CONFIG_MMC_SUNXI)			+= sunxi_mmc.o
-obj-$(CONFIG_MMC_UNIPHIER)		+= matsushita-common.o uniphier-sd.o renesas-sdhi.o
+obj-$(CONFIG_MMC_UNIPHIER)		+= matsushita-common.o uniphier-sd.o
+obj-$(CONFIG_RENESAS_SDHI)		+= matsushita-common.o renesas-sdhi.o
 obj-$(CONFIG_MMC_BCM2835)		+= bcm2835_sdhost.o