ASoC: tegra: cosmetic changes for Tegra210

Following changes are pushed as part of this commit:
 - Update copyright signature as per new format.
 - Remove references to "_ALT_" in header macros.
 - Fix copyright year for I2S, DMIC, DSPK, ADMAIF and XBAR drivers.
 - Fix file name in source header for Machine Utility driver.

Bug 2845498

Change-Id: I18b040a9d48a86a33f3ac6b6932d55e81d6414ac
Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-5.9/+/2354014
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Mohan Kumar D <mkumard@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>

sound/soc/tegra/tegra210_mvc.c

@@ -1,20 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0-only
 /*
  * tegra210_mvc.c - Tegra210 MVC driver
  *
- * Copyright (c) 2014-2019 NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2020 NVIDIA CORPORATION.  All rights reserved.
  *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+
 #include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/io.h>