Fix comment and Kconfig typos for 'require' and 'fragment'

Documentation/powerpc/dts-bindings/xilinx.txt

arch/mips/sibyte/bcm1480/irq.c

arch/mips/sibyte/sb1250/irq.c

crypto/Kconfig

drivers/gpu/drm/i915/intel_display.c

drivers/gpu/drm/radeon/atombios.h

drivers/isdn/hardware/mISDN/hfcmulti.c

drivers/net/bnx2x_hsi.h

drivers/net/ps3_gelic_wireless.c

drivers/staging/vt6655/rxtx.c

drivers/staging/vt6656/rxtx.c

drivers/usb/wusbcore/wa-xfer.c

net/ipv4/ipmr.c

scripts/package/mkspec