cpufreq: longhaul: use cpufreq_table_validate_and_show()

Lets use cpufreq_table_validate_and_show() instead of calling
cpufreq_frequency_table_cpuinfo() and cpufreq_frequency_table_get_attr().
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/cpufreq/longhaul.c

@@ -921,13 +921,7 @@ static int longhaul_cpu_init(struct cpufreq_policy *policy)
 	policy->cpuinfo.transition_latency = 200000;	/* nsec */
 	policy->cur = calc_speed(longhaul_get_cpu_mult());
 
-	ret = cpufreq_frequency_table_cpuinfo(policy, longhaul_table);
-	if (ret)
-		return ret;
-
-	cpufreq_frequency_table_get_attr(longhaul_table, policy->cpu);
-
-	return 0;
+	return cpufreq_table_validate_and_show(policy, longhaul_table);
 }
 
 static int longhaul_cpu_exit(struct cpufreq_policy *policy)