msm: cpufreq: Remove cross-calling limitation

Remove cross-calling limitations imposed by cpufreq. Clock drivers
and SPM driver now allow changing of frequencies from any core. Using
cpus_allowed mask to check for core affinity works well with workqueues
but do not port so well when the core requesting frequency change is a
kthread with the flag PF_TASK_BOUND not set.

Change-Id: Iab664ce8657780814440a11dff77cc925df597f8
Signed-off-by: Praveen Chidambaram <pchidamb@codeaurora.org>
(cherry picked from commit be01a17afb6b6e85456217caa1ac11eb0b6674e1)
(cherry picked from commit bd97cdfeb87eda0373721baaea744b02a27822f5)