cpufreq/intel_pstate: Add static declarations to internal functions
cpufreq/intel_pstate: Add static declarations to internal functions

Fixes warnings reported by kbuild test robot

sparse warnings: (new ones prefixed by >>)

drivers/cpufreq/intel_pstate.c:729:6: sparse: symbol 'copy_pid_params' was not declared. Should it be static?
drivers/cpufreq/intel_pstate.c:739:6: sparse: symbol 'copy_cpu_funcs' was not declared. Should it be static?

Signed-off-by: Dirk Brandewie <90b1bc8a6ba9849b6d077cb338e79c4550ccbc5f@intel.com>
Signed-off-by: Rafael J. Wysocki <27ffc44a8ec6a212fba98cfc3246c6ce8ab131e0@intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs