powerpc/85xx: Add USB device-tree fixup for various platforms

Add USB device-tree fixup for following platforms:
MPC8536DS, P1022DS, P1023RDS, P2020COME, P2020DS, P2041RDB, P3060QDS

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
diff --git a/include/configs/P2020DS.h b/include/configs/P2020DS.h
index d7d64d2..ac411ce 100644
--- a/include/configs/P2020DS.h
+++ b/include/configs/P2020DS.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ * Copyright 2007-2012 Freescale Semiconductor, Inc.
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -643,6 +643,8 @@
 /*
  * USB
  */
+#define CONFIG_HAS_FSL_DR_USB
+#ifdef CONFIG_HAS_FSL_DR_USB
 #define CONFIG_USB_EHCI
 
 #ifdef CONFIG_USB_EHCI
@@ -651,6 +653,7 @@
 #define CONFIG_USB_EHCI_FSL
 #define CONFIG_EHCI_HCD_INIT_AFTER_RESET
 #endif
+#endif
 
 #undef CONFIG_WATCHDOG			/* watchdog disabled */