Fix spelling of "occurred".

board/bf533-ezkit/flash.c

board/mpl/pip405/pip405.c

board/tqc/tqm5200/cmd_stk52xx.c

cmd/fdc.c

common/kgdb.c

common/usb_hub.c

drivers/ddr/marvell/a38x/ddr3_init.h

drivers/ddr/marvell/axp/ddr3_hw_training.h

drivers/i2c/kona_i2c.c

drivers/mtd/nand/omap_gpmc.c

drivers/net/4xx_enet.c

drivers/net/enc28j60.c

drivers/net/ne2000_base.c

drivers/usb/gadget/mpc8xx_udc.c

drivers/usb/musb/musb_hcd.c

include/linux/fb.h

include/test/ut.h

include/usbdevice.h