defconfig: initials tweaks
msm: mdss: Find a stable sysfs node for the gamma interface

Move sysfs files to /sys/module/dsi_panel/*

Conflicts:

	drivers/video/msm/mdss/mdss_dsi_panel.c
deadline: Allow 0ms deadline latency, increase the read speed

Change a timer compare from after to after-equals, thus allowing
0 timeout and making deadline schedule FIFO.

Signed-off-by: xiaobing tu <xiaobing.tu@intel.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block: deadline: Optimize for non-rotational
ARM/dt: hammerhead: Reduce minimum panel brightness