Revert "Revert "jf: enable pulsing led while booting""

This reverts commit 67bc36ca39ed07ede0b2d77a31b7c59f70adfb3d.

Change-Id: I7c5ca39d4cdd031b9fcf94f2a4b791651d70d945
Merge "Revert "Revert "jf: enable pulsing led while booting""" into kitkat