config: MPC837X : Add complete USB EHCI support

Add complete USB EHCI support for MPC837XEMDS and MPC837XERDB

Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/include/configs/MPC837XEMDS.h b/include/configs/MPC837XEMDS.h
index 695e47b..832c10f 100644
--- a/include/configs/MPC837XEMDS.h
+++ b/include/configs/MPC837XEMDS.h
@@ -387,6 +387,11 @@
 #define CONFIG_PQ_MDS_PIB	1 /* PQ MDS Platform IO Board */
 
 #define CONFIG_HAS_FSL_DR_USB	1 /* fixup device tree for the DR USB */
+#define CONFIG_CMD_USB
+#define CONFIG_USB_STORAGE
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_FSL
+#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
 
 #define CONFIG_PCI_PNP		/* do pci plug-and-play */