Fixes:
arch/mips/configs/dlink-dir-320_defconfig:52:warning: override: reassigning to symbol CMD_DHCP
arch/mips/configs/dlink-dir-320_defconfig:54:warning: override: reassigning to symbol CMD_PING
arch/mips/configs/dlink-dir-320_defconfig:55:warning: override: reassigning to symbol CMD_TFTP
arch/mips/configs/dlink-dir-320_defconfig:64:warning: override: reassigning to symbol FS_TFTP
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>