ARM: imx: dynamically allocate imx21-hcd devices

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
diff --git a/arch/arm/plat-mxc/devices/Kconfig b/arch/arm/plat-mxc/devices/Kconfig
index 212f380..a0be2df 100644
--- a/arch/arm/plat-mxc/devices/Kconfig
+++ b/arch/arm/plat-mxc/devices/Kconfig
@@ -15,6 +15,9 @@
 config IMX_HAVE_PLATFORM_GPIO_KEYS
 	bool
 	default y if ARCH_MX51
+
+config IMX_HAVE_PLATFORM_IMX21_HCD
+	bool
 	
 config IMX_HAVE_PLATFORM_IMX2_WDT
 	bool