mmc: Move host and card drivers to subdirs

Clean up the drivers/mmc directory by moving card and host drivers
into subdirectories.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
diff --git a/drivers/mmc/card/Makefile b/drivers/mmc/card/Makefile
new file mode 100644
index 0000000..cf8c939
--- /dev/null
+++ b/drivers/mmc/card/Makefile
@@ -0,0 +1,11 @@
+#
+# Makefile for MMC/SD card drivers
+#
+
+ifeq ($(CONFIG_MMC_DEBUG),y)
+	EXTRA_CFLAGS		+= -DDEBUG
+endif
+
+obj-$(CONFIG_MMC_BLOCK)		+= mmc_block.o
+mmc_block-objs			:= block.o queue.o
+