drm/amd/display: Fix copyright notice in DML2 code

[Why & How]
Fix incomplete copyright notice in DML2 code.

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Stylon Wang <stylon.wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

Author: Stylon Wang

drivers/gpu/drm/amd/display/dc/dml2/Makefile

@@ -20,7 +20,9 @@
 # ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 # OTHER DEALINGS IN THE SOFTWARE.
 #
-# makefile for dml2
+# Authors: AMD
+#
+# Makefile for dml2.
 
 ifdef CONFIG_X86
 dml2_ccflags-$(CONFIG_CC_IS_GCC) := -mhard-float

drivers/gpu/drm/amd/display/dc/dml2/cmntypes.h

@@ -20,6 +20,8 @@
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
+ * Authors: AMD
+ *
  */
 
 #ifndef __CMNTYPES_H__

drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c

@@ -20,6 +20,8 @@
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
+ * Authors: AMD
+ *
  */
 
 #include "display_mode_core.h"

drivers/gpu/drm/amd/display/dc/dml2/display_mode_core_structs.h

@@ -20,6 +20,8 @@
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
+ * Authors: AMD
+ *
  */
 
 #ifndef __DISPLAY_MODE_CORE_STRUCT_H__

drivers/gpu/drm/amd/display/dc/dml2/display_mode_lib_defines.h

@@ -20,6 +20,8 @@
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
+ * Authors: AMD
+ *
  */
 
 #ifndef __DISPLAY_MODE_LIB_DEFINES_H__

drivers/gpu/drm/amd/display/dc/dml2/display_mode_util.c

@@ -20,6 +20,8 @@
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
+ * Authors: AMD
+ *
  */
 
 #include "display_mode_util.h"

drivers/gpu/drm/amd/display/dc/dml2/display_mode_util.h

@@ -20,6 +20,8 @@
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
+ * Authors: AMD
+ *
  */
 
 #ifndef __DISPLAY_MODE_UTIL_H__

drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.c

@@ -20,6 +20,8 @@
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
+ * Authors: AMD
+ *
  */
 
 #include "dml2_mall_phantom.h"

drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_resource_mgmt.h

@@ -20,6 +20,8 @@
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
+ * Authors: AMD
+ *
  */
 
 #ifndef __DML2_DC_RESOURCE_MGMT_H__

drivers/gpu/drm/amd/display/dc/dml2/dml2_dc_types.h

@@ -20,6 +20,8 @@
  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  * OTHER DEALINGS IN THE SOFTWARE.
  *
+ * Authors: AMD
+ *
  */