fs/dyn_sync_cntrl: dynamic sync control

ef47s_defconfig: enable dynamic fsync()

The dynamic sync control interface uses Android kernel's unique early
suspend / lat resume interface.

While screen is on, file sync is disabled
when screen is off, a file sync is called to flush all outstanding writes
and restore file sync operation as normal.

Signed-off-by: Paul Reioux <reioux@gmail.com>

Conflicts:
	fs/sync.c
msm_fb: display: Fix dsi read packet size for LiQUID

The toshiba DSI-to-LVDS bridge supports only packet size of 4
for reading its registers.
The DSI host should avoid changing the bridge packet size.

Change-Id: I08a4cb5921c90e9fa07db62e0310fcdb6155f131
Signed-off-by: Amir Samuelov <amirs@codeaurora.org>

Conflicts:
	drivers/video/msm/mipi_dsi_host.c