LICENSES: Add CC-BY-SA-4.0 license text

Add the full text of the CC-BY-SA-4.0 license to the kernel tree.  It was
copied directly from:

   https://spdx.org/licenses/CC-BY-SA-4.0.html#licenseText

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

1 files changed, 397 insertions, 0 deletions

diff --git a/LICENSES/other/CC-BY-SA-4.0 b/LICENSES/other/CC-BY-SA-4.0
new file mode 100644
index 000000000000..f9158e831e79
--- /dev/null
+++ b/LICENSES/other/CC-BY-SA-4.0
@@ -0,0 +1,397 @@
+Valid-License-Identifier: CC-BY-SA-4.0
+SPDX-URL: https://spdx.org/licenses/CC-BY-SA-4.0
+Usage-Guide:
+  To use the Creative Commons Attribution Share Alike 4.0 International
+  license put the following SPDX tag/value pair into a comment according to
+  the placement guidelines in the licensing rules documentation:
+    SPDX-License-Identifier: CC-BY-SA-4.0
+License-Text:
+
+Creative Commons Attribution-ShareAlike 4.0 International
+
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