efikamx: add mmc support

The efika mx is using a esdhc host for mmc support. Now that the sdhci
has support for it, enable it.

Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
diff --git a/arch/arm/mach-mx5/Kconfig b/arch/arm/mach-mx5/Kconfig
index 95cb0a8..0345abe 100644
--- a/arch/arm/mach-mx5/Kconfig
+++ b/arch/arm/mach-mx5/Kconfig
@@ -81,6 +81,7 @@
 
 config MACH_MX51_EFIKAMX
 	bool "Support MX51 Genesi Efika MX nettop"
+	select IMX_HAVE_PLATFORM_ESDHC
 	select IMX_HAVE_PLATFORM_IMX_UART
 	help
 	  Include support for Genesi Efika MX nettop. This includes specific