LICENSES: Add the Apache-2.0 license for standalone files

Add the full text of the Apache-2.0 license to the OpenOCD tree.
It has the same content from:

  https://spdx.org/licenses/Apache-2.0.html#licenseText

but reformatted as in the Linux kernel document and added the
required tags for reference and tooling.
While this commit is specific for standalone files, it already
reports the information for dual licensing.

Change-Id: I1fd427256c310ab733fb5d50f344ac52c64a56f5
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/8005
Tested-by: jenkins
Reviewed-by: Erhan Kurubas <erhan.kurubas@espressif.com>

1 files changed, 189 insertions, 0 deletions

diff --git a/LICENSES/stand-alone/Apache-2.0 b/LICENSES/stand-alone/Apache-2.0
new file mode 100644
index 0000000..ae8128b
--- /dev/null
+++ b/LICENSES/stand-alone/Apache-2.0
@@ -0,0 +1,189 @@
+Valid-License-Identifier: Apache-2.0
+SPDX-URL: https://spdx.org/licenses/Apache-2.0.html
+Usage-Guide:
+  Do NOT use on OpenOCD code. The Apache-2.0 is not GPL2 compatible. It may only
+  be used for dual-licensed files where the other license is GPL2 compatible.
+  If you end up using this it MUST be used together with a GPL2 compatible
+  license using "OR".
+  It may also be used for stand-alone code NOT linked within the OpenOCD binary
+  but distributed with OpenOCD.
+  To use the Apache License version 2.0 put the following SPDX tag/value
+  pair into a comment according to the placement guidelines in the
+  licensing rules documentation:
+    SPDX-License-Identifier: Apache-2.0
+License-Text:
+
+Apache License
+
+Version 2.0, January 2004
+
+http://www.apache.org/licenses/
+
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