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>
Signed-off-by: flar2 <asegaert@gmail.com>
msm: Improve qpnp-vibrator scheduling

 * Skip the workqueue and use spinlocks to improve interactivity
 * This vastly improves "recent apps" in Android

Change-Id: I77da17b4f1ce2f213772c41ddbac21250432279e
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: flar2 <asegaert@gmail.com>