ASoC: soc-topology-test: clarify Copyright information

For some reason a number of files included the "All rights reserved"
statement. Good old copy-paste made sure this mistake proliferated.

Remove the "All rights reserved" in all Intel-copyright to align with
internal guidance.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20240503140359.259762-8-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-topology-test.c

@@ -2,7 +2,7 @@
 /*
  * soc-topology-test.c  --  ALSA SoC Topology Kernel Unit Tests
  *
- * Copyright(c) 2021 Intel Corporation. All rights reserved.
+ * Copyright(c) 2021 Intel Corporation.
  */
 
 #include <linux/firmware.h>