cpufreq: Save user policy min/max instead of policy min/max during hotplug

When a CPU is hotplugged off, various fields of the policy are saved so
that they can be restored when the CPU is hotplugged back in.

The existing code saves the policy min/max field during hotplug remove and
restores it into user policy min/max during hotplug add. This results in
the loss of the user policy min/max values across a hotplug remove/add.

Fix it by saving the user policy min/max instead of policy min/max during
hotplug remove. During a hotplug add, after user policy min/max is
restored, the policy min/max is already recomputed. So, there's no risk of
going beyound any limits imposed by the CPUFREQ_ADJUST/INCOMPATIBLE
notifiers.

Change-Id: Ib8e09fa324c1f80f095c5754b5dcf2685e8e4a66
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
msm: acpuclock-krait: Remove unused ua_core calculation

ua_core data are not provided.
So, remove unused calculations.

Signed-off-by: Stratos Karafotis <stratosk@semaphore.gr>
workaround for the assembler error with gcc 4.9 Linaro toolchain

adding -Wa,-mimplicit-it=thumb option to AFLAGS fixes the following build
failure
Error: thumb conditional instruction should be in IT block

Conflicts:
	Makefile