Remove erroneous character from SPDX identifer

Erroneous '/' was appended to start of comment. This was causing CMake
warning during complition. Removes character from affected files.

connectivity/drivers/emac/TARGET_NUVOTON_EMAC/numaker_emac_config.h

@@ -1,5 +1,5 @@
 /* Copyright (c) 2018 ARM Limited
-/* SPDX-License-Identifier: Apache-2.0
+ * 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.

connectivity/drivers/emac/TARGET_NXP_EMAC/TARGET_LPCTarget/lpc17_emac.h

@@ -1,5 +1,5 @@
 /* Copyright (c) 2018 ARM Limited
-/* SPDX-License-Identifier: Apache-2.0
+ * 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.

connectivity/lwipstack/include/lwipstack/LWIPMemoryManager.h

@@ -1,5 +1,5 @@
 /* Copyright (c) 2017 ARM Limited
-/* SPDX-License-Identifier: Apache-2.0
+ * 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.

connectivity/lwipstack/source/LWIPInterface.cpp

@@ -1,5 +1,5 @@
 /* Copyright (c) 2017 ARM Limited
-/* SPDX-License-Identifier: Apache-2.0
+ * 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.

connectivity/lwipstack/source/LWIPMemoryManager.cpp

@@ -1,5 +1,5 @@
 /* Copyright (c) 2017 ARM Limited
-/* SPDX-License-Identifier: Apache-2.0
+ * 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.

connectivity/nanostack/mbed-mesh-api/source/include/NanostackMemoryManager.h

@@ -1,5 +1,5 @@
 /* Copyright (c) 2017 ARM Limited
-/* SPDX-License-Identifier: Apache-2.0
+ * 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.

connectivity/netsocket/include/netsocket/EMACMemoryManager.h

@@ -1,5 +1,5 @@
 /* Copyright (c) 2017 ARM Limited
-/* SPDX-License-Identifier: Apache-2.0
+ * 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.

storage/filesystem/tests/TESTS/filesystem/general_filesystem/main.cpp

@@ -1,5 +1,5 @@
 /* Copyright (c) 2017 ARM Limited
-/* SPDX-License-Identifier: Apache-2.0
+* 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.