jflte: add permissions for mmcblk1 scheduler; increase read ahead cache size

Change-Id: I6ba5fba6c161b69900c50c8497a67af84b601a66
jflte: loki: support flashing loki'd recovery images

Change-Id: Ib2caad1a6b7aa048be9abf8f3503aabf50fa134f
Merge "jflte: add permissions for mmcblk1 scheduler; increase read ahead cache size" into cm-11.0