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/board/freescale/p2020come/p2020come.c b/board/freescale/p2020come/p2020come.c
index 8cf7bee..ba4ef87 100644
--- a/board/freescale/p2020come/p2020come.c
+++ b/board/freescale/p2020come/p2020come.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2009 Freescale Semiconductor, Inc.
+ * Copyright 2009,2012 Freescale Semiconductor, Inc.
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -282,6 +282,8 @@
 
 	fdt_fixup_memory(blob, (u64)base, (u64)size);
 
+#ifdef CONFIG_HAS_FSL_DR_USB
 	fdt_fixup_dr_usb(blob, bd);
+#endif
 }
 #endif