qcom-cpufreq: Restore CPU frequency during resume

qcom-cpufreq blocks CPU frequency change request during suspend, because
its dependencies might be suspended. Thus a freq change request would
fail silently, and CPU clock won't change until first frequency update
is requested after system comes out of suspend. This creates a period
when thermal driver cannot perform frequency mitigation, even though
policy->min/max have been correctly updated.

Check each online CPU's policy during resume to correct any frequency
violation as soon as possible.

Change-Id: I3be79cf91e7d5e361314020c9806b770823c0b72
Signed-off-by: Junjie Wu <junjiew@codeaurora.org>