cpufreq: Give consistent names to cpufreq_policy objects

They are called policy, cur_policy, new_policy, data, etc.  Just call
them policy wherever possible.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h
index 0d3b026..2920892 100644
--- a/include/linux/cpufreq.h
+++ b/include/linux/cpufreq.h
@@ -94,7 +94,7 @@
 #define CPUFREQ_SHARED_TYPE_ANY	 (3) /* Freq can be set from any dependent CPU*/
 
 struct cpufreq_policy *cpufreq_cpu_get(unsigned int cpu);
-void cpufreq_cpu_put(struct cpufreq_policy *data);
+void cpufreq_cpu_put(struct cpufreq_policy *policy);
 
 static inline bool policy_is_shared(struct cpufreq_policy *policy)
 {