mmc: rmobile: Add SDHC support for Renesas rmobile ARM SoC

This adds Renesas rmobile ARM SoC's SD/MMC host support.
This drivers tested with Gose board and Koelsch board.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 461d7d8..4ba5878 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -30,6 +30,7 @@
 obj-$(CONFIG_S5P_SDHCI) += s5p_sdhci.o
 obj-$(CONFIG_SDHCI) += sdhci.o
 obj-$(CONFIG_SH_MMCIF) += sh_mmcif.o
+obj-$(CONFIG_SH_SDHI) += sh_sdhi.o
 obj-$(CONFIG_SOCFPGA_DWMMC) += socfpga_dw_mmc.o
 obj-$(CONFIG_SPEAR_SDHCI) += spear_sdhci.o
 obj-$(CONFIG_TEGRA_MMC) += tegra_mmc.o