Revert "msm: use of swp{b} is deprecated for ARMv6+"

This reverts commit 2e517acb21e2ea3bb3f67b08c7f58e6a16aa53a9.

Signed-off-by: Dan Trifan <jimsth@gmail.com>
msm: remote_spinlock: swp{b} is deprecated for ARM>v5

Signed-off-by: Dan Trifan <jimsth@gmail.com>
msm: hotplug: Allow to disable the circular stats buffer

This option reduces latency a tiny bit more.

Signed-off-by: Dan Trifan <jimsth@gmail.com>
msm: rq_stats: Calculate load based on current freq limit

We are not using rq_stats any more so this commit is just for the
sake of completeness.  Prior to this patch, load has been calculated
based on an initial value of policy.cpuinfo.max_freq. This value may
change for several reasons: userspace settings, thermal throttling
(hello hammerhead!) or extended frequency tables where the absolute
maximum level is often not used during regular operations. This
results in unreliable calculations. Consider current policy.max to
fix this behaviour.

Signed-off-by: Dan Trifan <jimsth@gmail.com>