MMC: Add support for PL180 ARM mmc device

Add support for the ARM PrimeCell MultiMedia Interface - PL180.
Ported from original device driver written by ST-Ericsson.

Signed-off-by: Matt Waddel <matt.waddel@linaro.org>

drivers/mmc/Makefile

diff --git a/drivers/mmc/Makefile b/drivers/mmc/Makefile
index 9aca3a2..a8fe17a 100644
--- a/drivers/mmc/Makefile
+++ b/drivers/mmc/Makefile
@@ -32,6 +32,7 @@
 COBJS-$(CONFIG_GENERIC_MMC) += mmc.o
 COBJS-$(CONFIG_GENERIC_ATMEL_MCI) += gen_atmel_mci.o
 COBJS-$(CONFIG_MMC_SPI) += mmc_spi.o
+COBJS-$(CONFIG_ARM_PL180_MMCI) += arm_pl180_mmci.o
 COBJS-$(CONFIG_MXC_MMC) += mxcmmc.o
 COBJS-$(CONFIG_OMAP3_MMC) += omap3_mmc.o
 COBJS-$(CONFIG_OMAP_HSMMC) += omap_hsmmc.o