nspire: added CX backlight driver
nspire: remove ext2 and ext3 drivers from defconfig since the ext4 driver can handle them
nspire: watchdog support
Added support for the touchpad
Merge branch 'nspire' of https://github.com/tangrs/linux into testing

Conflicts:
	arch/arm/mach-nspire/nspire_cx.c
Merge branch 'nspire' of https://github.com/tangrs/linux into testing

Conflicts:
	arch/arm/mach-nspire/nspire_cx.c