Revert "cypress-touchkey: remove backlight timeout feature"

This reverts commit 57fa7640c1726f2846d609495ed5130ed5032d11.
temasek defconfig - debranding
cypress-touchkey : add sysfs interface to enable/disable lighting hardwarekey backlight on screen touch (Yank555.lu)
cypress-touchkey : add sysfs interface to enable/disable lighting hardwarekey backlight on screen touch (Yank555.lu)

- prevent h/w keys to light up on late_resume as well if disabled
Revert "cypress: report led status via sysfs"

This reverts commit 186412c9d4ac2be1c6cba7470b78355a7adb9ce6.
Revert "isa1200: move sysfs node for pwm level"

This reverts commit c70f251e34d3178c68bf3c88e3d620d3917d331d.
Revert "smdk4412: max77693_haptic: move sysfs node"

This reverts commit 33ef6f8cf6b8105c016aacf0a1e3cde1d238a431.
Revert "max8997: move sysfs node for pwm level"

This reverts commit f98b67c6e31214dd28f32239e1df4d96a5b6e94a.