drm/amd/powerplay: fix copy paste error in error message

Noticed-by: Vasily Anonimov <vasily.anonimov@googlemail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/polaris10_hwmgr.c

@@ -2533,7 +2533,7 @@ int polaris10_enable_dpm_tasks(struct pp_hwmgr *hwmgr)
 
 	tmp_result = polaris10_pcie_performance_request(hwmgr);
 	PP_ASSERT_WITH_CODE((0 == tmp_result),
-			"Failed to enable thermal auto throttle!", result = tmp_result);
+			"pcie performance request failed!", result = tmp_result);
 
 	return result;
 }