cpufreq: Fix freq limit init for cores resuming from hotplug

In the scenario that a non-primary core is resuming from a hotplug, retain cpu0's min max to avoid being reset back to default min/max. There might be some underlying issue on why this is not already done natively... but hey I'm just here for a hotfix.

Signed-off-by: Chet Kener <Cl3Kener@gmail.com>