fix comments with new drivers organization

README

board/sc3/sc3.c

board/ssv/common/cmd_sled.c

common/env_nand.c

cpu/ppc4xx/4xx_pci.c

doc/README.generic_usb_ohci

doc/README.modnet50

drivers/mtd/nand/nand_util.c

drivers/net/sk98lin/Makefile

drivers/usb/isp116x-hcd.c

drivers/usb/usbdcore_mpc8xx.c

drivers/video/cfb_console.c

fs/jffs2/jffs2_1pass.c

include/configs/CATcenter.h

include/configs/MPC8313ERDB.h

include/configs/PPChameleonEVB.h

include/configs/SX1.h

include/configs/integratorcp.h

include/configs/omap1510inn.h

include/configs/omap2420h4.h