drivers/[n-z]*: Remove obsolete references to CONFIG_COMMANDS

drivers/nand/nand.c

drivers/nand/nand_base.c

drivers/nand/nand_bbt.c

drivers/nand/nand_ecc.c

drivers/nand/nand_ids.c

drivers/nand/nand_util.c

drivers/nand_legacy/nand_legacy.c

drivers/natsemi.c

drivers/netarm_eth.c

drivers/ns8382x.c

drivers/pcnet.c

drivers/plb2800_eth.c

drivers/pxa_pcmcia.c

drivers/rpx_pcmcia.c

drivers/rtl8019.c

drivers/rtl8139.c

drivers/rtl8169.c

drivers/sk98lin/uboot_drv.c

drivers/sym53c8xx.c

drivers/ti_pci1410a.c