jflte: update fstab flags

per stock ROM

Change-Id: I0fffcd56daeca2b34aa763e3e9a107a61dbf07d4
jflte: increase read-ahead cache size

Change-Id: If6fbc66c406d8d0f9cf16b9907f0dfe2487a9c78
jf: enable pulsing led while booting

Change-Id: I703fee5b09fa775b237dc0ec12183b56b86040dd