arm: mvebu: db-mv785mp-gp: Add USB/EHCI support

This patch enabled the USB/EHCI support for the Marvell
DB-MV784MP-GP Armada XP eval board.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Anton Schubert <anton.schubert@gmx.de>
Cc: Marek Vasut <marex@denx.de>
Cc: Luka Perkov <luka.perkov@sartura.hr>

include/configs/db-mv784mp-gp.h

@@ -33,6 +33,7 @@
 #define CONFIG_CMD_SPI
 #define CONFIG_CMD_TFTPPUT
 #define CONFIG_CMD_TIME
+#define CONFIG_CMD_USB
 
 /* I2C */
 #define CONFIG_SYS_I2C
@@ -41,6 +42,12 @@
 #define CONFIG_SYS_I2C_SLAVE		0x0
 #define CONFIG_SYS_I2C_SPEED		100000
 
+/* USB/EHCI configuration */
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_STORAGE
+#define CONFIG_USB_EHCI_MARVELL
+#define CONFIG_EHCI_IS_TDI
+
 /* SPI NOR flash default params, used by sf commands */
 #define CONFIG_SF_DEFAULT_SPEED		1000000
 #define CONFIG_SF_DEFAULT_MODE		SPI_MODE_3