bam_dmux: Use power efficient workqueues for delayed timeouts

There is no need to use a normal per-CPU workqueue for delayed power downs
as they're not timing or performance critical and waking up a core for them
would defeat some of the point.

Signed-off-by: Luis Cruz <ljc2491@gmail.com>
Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>
Signed-off-by: franciscofranco <franciscofranco.1990@gmail.com>
Signed-off-by: Lens-F <tnoah12@gmail.com>

Conflicts:
	arch/arm/mach-msm/bam_dmux.c
cpufreq_badass: remove BADASS_GPU_CONTROL

Signed-off-by: Lens-F <tnoah12@gmail.com>
cpufreq_badass: adjust PHASE_2 and PHASE_3 percents

Signed-off-by: Lens-F <tnoah12@gmail.com>