tests: fix SPDX identifiers

Author: 0xc0170

TESTS/host_tests/crash_reporting.py

@@ -1,5 +1,6 @@
 """
 Copyright (c) 2018 ARM Limited
+SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

TESTS/host_tests/device_echo.py

@@ -1,6 +1,7 @@
 """
 mbed SDK
 Copyright (c) 2011-2016 ARM Limited
+SPDX-License-Identifier: Apache-2.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

TESTS/host_tests/rtc_calc_auto.py

@@ -1,6 +1,7 @@
 """
 mbed SDK
 Copyright (c) 2011-2013 ARM Limited
+SPDX-License-Identifier: Apache-2.
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

TESTS/host_tests/rtc_reset.py

@@ -1,6 +1,7 @@
 """
 mbed SDK
 Copyright (c) 2017-2017 ARM Limited
+SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

TESTS/host_tests/system_reset.py

@@ -1,5 +1,6 @@
 """
 Copyright (c) 2018 ARM Limited
+SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

TESTS/host_tests/timing_drift_auto.py

@@ -1,6 +1,7 @@
 """
 mbed SDK
 Copyright (c) 2011-2013 ARM Limited
+SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

TESTS/host_tests/trng_reset.py

@@ -1,5 +1,7 @@
 """
 Copyright (c) 2018 ARM Limited
+SPDX-License-Identifier: Apache-2.
+
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.
 You may obtain a copy of the License at

TESTS/host_tests/usb_device_hid.py

@@ -1,6 +1,7 @@
 """
 mbed SDK
 Copyright (c) 2019 ARM Limited
+SPDX-License-Identifier: Apache-2.0
 
 Licensed under the Apache License, Version 2.0 (the "License");
 you may not use this file except in compliance with the License.

TESTS/mbed_hal/trng/pithy/pithy.c

@@ -3,6 +3,7 @@
 //  http://github.com/johnezang/pithy
 //  Licensed under the terms of the BSD License, as specified below.
 //
+// SPDX-License-Identifier: BSD-3-Clause
 
 /*
  Copyright (c) 2011, John Engelhart

TESTS/mbed_hal/trng/pithy/pithy.h

@@ -3,6 +3,7 @@
 //  http://github.com/johnezang/pithy
 //  Licensed under the terms of the BSD License, as specified below.
 //
+// SPDX-License-Identifier: BSD-3-Clause
 
 /*
  Copyright (c) 2011, John Engelhart