arm64: topology: Do not warn on missing AMU in cpuhp_topology_online()

When CONFIG_CPUMASK_OFFSTACK is not enabled, and resuming from s2ram on
Renesas R-Car H3 (big.LITTLE 4x Cortex-A57 + 4x Cortex-A53), during
enabling of the first little core, a warning message is printed:

    AMU: CPU[4] doesn't support AMU counters

This confuses users, as during boot amu_fie_setup() does not print such
a message, unless debugging is enabled (freq_counters_valid() prints
"CPU%d: counters are not supported.\n" at debug level in that case).

Hence drop the warning, freq_counters_valid() has already printed a
debug message anyway.

Fixes: 6fd9be0 ("arm64: topology: Handle AMU FIE setup on CPU hotplug")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Lifeng Zheng <zhenglifeng1@huawei.com>
Signed-off-by: Will Deacon <will@kernel.org>

Author: geertu

arch/arm64/kernel/topology.c

@@ -332,7 +332,6 @@ static int cpuhp_topology_online(unsigned int cpu)
 	 * may use different source of the freq scale.
 	 */
 	if (!freq_counters_valid(cpu)) {
-		pr_warn("CPU[%u] doesn't support AMU counters\n", cpu);
 		topology_clear_scale_freq_source(SCALE_FREQ_SOURCE_ARCH,
 						 policy->related_cpus);
 		cpumask_andnot(amu_fie_cpus, amu_fie_cpus, policy->related_cpus);