cpufreq: do not open-code of_phandle_args_equal()

Use newly added of_phandle_args_equal() helper to compare two
of_phandle_args.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20240129115216.96479-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>

Author: krzk

include/linux/cpufreq.h

@@ -1149,8 +1149,7 @@ static inline int of_perf_domain_get_sharing_cpumask(int pcpu, const char *list_
 		if (ret < 0)
 			continue;
 
-		if (pargs->np == args.np && pargs->args_count == args.args_count &&
-		    !memcmp(pargs->args, args.args, sizeof(args.args[0]) * args.args_count))
+		if (of_phandle_args_equal(pargs, &args))
 			cpumask_set_cpu(cpu, cpumask);
 
 		of_node_put(args.np);