Add sysfs vibrator intensity controls

Patch Set 2
    Removed unused variable

Patch Set 3
    Use pwm_old variable

Patch Set 4
    Add authorship

Change-Id: Ibcb887fe2c78cfd5740f363d33d1ed997c98b9c6
Add unlocked Touchwake (20s by default)

Signed-off-by: Willi Ye <williye97@gmail.com>

Conflicts:

	drivers/misc/Kconfig
	drivers/misc/Makefile

Conflicts:
	arch/arm/configs/tuna_defconfig
	drivers/misc/Makefile