powerpc/usb:Differentiate USB controller base address

Introduce different macros for storing addresses of multiple
USB controllers. This is required for successful initialization
and usage of multiple USB controllers inside u-boot

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
diff --git a/include/usb/ehci-fsl.h b/include/usb/ehci-fsl.h
index 9e106fc..734305b 100644
--- a/include/usb/ehci-fsl.h
+++ b/include/usb/ehci-fsl.h
@@ -149,11 +149,18 @@
 #define MPC83XX_SCCR_USB_DRCM_10	0x00200000
 
 #if defined(CONFIG_MPC83xx)
-#define CONFIG_SYS_FSL_USB_ADDR CONFIG_SYS_MPC83xx_USB_ADDR
+#define CONFIG_SYS_FSL_USB1_ADDR CONFIG_SYS_MPC83xx_USB1_ADDR
+#if defined(CONFIG_MPC834x)
+#define CONFIG_SYS_FSL_USB2_ADDR CONFIG_SYS_MPC83xx_USB2_ADDR
+#else
+#define CONFIG_SYS_FSL_USB2_ADDR	0
+#endif
 #elif defined(CONFIG_MPC85xx)
-#define CONFIG_SYS_FSL_USB_ADDR CONFIG_SYS_MPC85xx_USB_ADDR
+#define CONFIG_SYS_FSL_USB1_ADDR CONFIG_SYS_MPC85xx_USB1_ADDR
+#define CONFIG_SYS_FSL_USB2_ADDR CONFIG_SYS_MPC85xx_USB2_ADDR
 #elif defined(CONFIG_MPC512X)
-#define CONFIG_SYS_FSL_USB_ADDR CONFIG_SYS_MPC512x_USB_ADDR
+#define CONFIG_SYS_FSL_USB1_ADDR CONFIG_SYS_MPC512x_USB1_ADDR
+#define CONFIG_SYS_FSL_USB2_ADDR	0
 #endif
 
 /*