powerpc/85xx: Add default usb mode and phy type to hwconfig

Move to use hwconfig for usb mode & phy type instead of magic
'usb_phy_type' environment variable on the following platforms:

MPC8536DS, P1020RDB, P1020RDB-PC, P1010RDB, P2020RDB, P2020RDB-PC,
P2020RDB, P3041DS, P4080DS, & P5020DS.

Signed-off-by: Ramneek Mehresh <ramneek.mehresh@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/configs/P2020DS.h b/include/configs/P2020DS.h
index b5db0b3..90fe7c4 100644
--- a/include/configs/P2020DS.h
+++ b/include/configs/P2020DS.h
@@ -752,7 +752,8 @@
 
 #define	CONFIG_EXTRA_ENV_SETTINGS				\
  "perf_mode=performance\0"			\
- "hwconfig=fsl_ddr:ctlr_intlv=bank,bank_intlv=cs0_cs1\0"	\
+	"hwconfig=fsl_ddr:ctlr_intlv=bank,bank_intlv=cs0_cs1;"	\
+	"usb1:dr_mode=host,phy_type=ulpi\0"			\
  "netdev=eth0\0"						\
  "uboot=" MK_STR(CONFIG_UBOOTPATH) "\0"				\
  "tftpflash=tftpboot $loadaddr $uboot; "			\