msm: bam_dmux: increase min/max sleep usecs.

 Remove spinlocks
 around the wake_lock/unlock and use an atomic variable instead to protect
 wakelock_reference_count.

Change-Id: I2de6c2f32a14390bd42ea1aaae0d66bcc7be847b
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
vfp: optimize for A15

Change-Id: I75fa4c945fa162c03aebf31c0951757450764643