radv: don't leak DRM devices

After successful drmGetDevices2() call, drmFreeDevices() needs to be called.

Fixes: 743315f2 "radv: do not open random render node(s)"
Signed-off-by: Grazvydas Ignotas <notasas@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>

src/amd/vulkan/radv_device.c

@@ -417,9 +417,11 @@ radv_enumerate_devices(struct radv_instance *instance)
 			if (result == VK_SUCCESS)
 				++instance->physicalDeviceCount;
 			else if (result != VK_ERROR_INCOMPATIBLE_DRIVER)
-				return result;
+				break;
 		}
 	}
+	drmFreeDevices(devices, max_devices);
+
 	return result;
 }