doc: fix misspellings with 'codespell' tool

Documentation/DocBook/drm.tmpl

Documentation/DocBook/media/dvb/frontend.xml

Documentation/DocBook/media/v4l/controls.xml

Documentation/DocBook/writing_usb_driver.tmpl

Documentation/bcache.txt

Documentation/block/queue-sysfs.txt

Documentation/cgroups/memory.txt

Documentation/device-mapper/cache.txt

...on/devicetree/bindings/arm/samsung/interrupt-combiner.txt

Documentation/devicetree/bindings/arm/spear/shirq.txt

Documentation/devicetree/bindings/clock/silabs,si5351.txt

Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt

Documentation/devicetree/bindings/powerpc/4xx/emac.txt

Documentation/devicetree/bindings/spi/brcm,bcm2835-spi.txt

...tion/devicetree/bindings/timer/samsung,exynos4210-mct.txt

Documentation/devicetree/bindings/usb/am33xx-usb.txt

Documentation/devicetree/bindings/usb/omap-usb.txt

Documentation/dynamic-debug-howto.txt

Documentation/fb/cirrusfb.txt

Documentation/filesystems/jfs.txt