leds: At disable, set the trigger to default instead of wiping it

Change-Id: Ifb4a3b3034c441d29fd1d9f209ed829adfc76a72
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Fix for bad merge of 'ksm: check and skip page, if it is already scanned'

Signed-off-by: MassStash <MassStash@gmail.com>