[ Upstream commit dc14eb12f6bb3e779c5461429c1889a339c67aab ]

Add missing power_average to visible check for power
attributes for APUs.  Was missed before.
Reviewed-by: NEvan Quan <evan.quan@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Signed-off-by: NSasha Levin <sashal@kernel.org>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>