Revert "Revert "Add new scheduler: BFQ-v5r1 for 3.0""

This reverts commit 15d067b589f5421c7fa7bfd9970a12af98c15fde.
Set of BFQ improvements

Taken from fishears
&
Early Queue Merge for BFQ by Paolo
Bump kernel version to 0.244

Change-Id: I4b6405e7c0a9084995ddc8715b07d5cbd994f83f