[GIT PULL] LED fix for 4.15-rc7

Hi Linus, Please pull LED regression fix for 4.15-rc7. The commit 2b83ff96f51d for 4.15-rc6, which was fixing LED brightness setting after clearing delay_off broke the behavior on any alteration of delay_on{off} properties, due to use of a LED core helper that does too much for this particular

[GIT PULL] LED fix for 4.15-rc7

Hi Linus, Please pull LED regression fix for 4.15-rc7. The commit 2b83ff96f51d for 4.15-rc6, which was fixing LED brightness setting after clearing delay_off broke the behavior on any alteration of delay_on{off} properties, due to use of a LED core helper that does too much for this particular