arm: ca9x4_ct_vxp: enable PXE BOOTP options support

Signed-off-by: Jason Hobbs <jason.hobbs@calxeda.com>
Cc: Matt Waddel <matt.waddel@linaro.org>

include/configs/ca9x4_ct_vxp.h

@@ -96,6 +96,9 @@
 #define CONFIG_BOOTP_BOOTPATH
 #define CONFIG_BOOTP_GATEWAY
 #define CONFIG_BOOTP_HOSTNAME
+#define CONFIG_BOOTP_PXE
+#define CONFIG_BOOTP_PXE_CLIENTARCH	0x100
+#define CONFIG_BOOTP_VCI_STRING		"U-boot.armv7.ca9x4_ct_vxp"
 
 /* Miscellaneous configurable options */
 #undef	CONFIG_SYS_CLKS_IN_HZ