drm/amdgpu: print what method we are using for runtime pm

So we know when it's enabled and what method we are using.
Acked-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c

@@ -163,9 +163,11 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
 	if (amdgpu_device_supports_atpx(dev) &&
 	    (amdgpu_runtime_pm != 0)) { /* enable runpm by default for atpx */
 		adev->runpm = true;
+		dev_info(adev->dev, "Using ATPX for runtime pm\n");
 	} else if (amdgpu_device_supports_boco(dev) &&
 		   (amdgpu_runtime_pm != 0)) { /* enable runpm by default for boco */
 		adev->runpm = true;
+		dev_info(adev->dev, "Using BOCO for runtime pm\n");
 	} else if (amdgpu_device_supports_baco(dev) &&
 		   (amdgpu_runtime_pm != 0)) {
 		switch (adev->asic_type) {
@@ -187,6 +189,8 @@ int amdgpu_driver_load_kms(struct amdgpu_device *adev, unsigned long flags)
 			adev->runpm = true;
 			break;
 		}
+		if (adev->runpm)
+			dev_info(adev->dev, "Using BACO for runtime pm\n");
 	}
 
 	/* Call ACPI methods: require modeset init