Arithmetic expressions do not get evaluated under stringification. Remove
default network configuration, add DHCP command support. Thanks to Felix
Radensky for reporting.
Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
 #include <config_cmd_default.h>
 
 #define CONFIG_CMD_PING
+#define CONFIG_CMD_DHCP
 #define CONFIG_CMD_SPI
 #define CONFIG_CMD_DATE
 
 #define CONFIG_BOOTDELAY       3
 
-#define CONFIG_NETMASK         255.255.255.0
-#define CONFIG_IPADDR          192.168.23.168
-#define CONFIG_SERVERIP                192.168.23.2
-#define CONFIG_LOADADDR                (CSD0_BASE + 0x800000)  /* loadaddr env var */
+#define CONFIG_LOADADDR                0x80800000      /* loadaddr env var */
 
 #define        CONFIG_EXTRA_ENV_SETTINGS                                       \
        "netdev=eth0\0"                                                 \