Add patch for license files.

To make crate match archive contents.

Bug: http://b/339424309
Test: treehugger
Change-Id: I805e626aecd93c46be09ad65983c165004789fb0
diff --git a/patches/license.patch b/patches/license.patch
new file mode 100644
index 0000000..ee84612
--- /dev/null
+++ b/patches/license.patch
@@ -0,0 +1,538 @@
+diff --git b/LICENSE a/LICENSE
+index c300739..199b4df 100644
+--- b/LICENSE
++++ a/LICENSE
+@@ -1 +1,23 @@
+-LGPL-2.1-only OR BSD-2-Clause
++Copyright (c) <year> <owner> . All rights reserved.
++
++Redistribution and use in source and binary forms, with or without
++modification, are permitted provided that the following conditions are met:
++
++1. Redistributions of source code must retain the above copyright notice,
++   this list of conditions and the following disclaimer.
++
++2. Redistributions in binary form must reproduce the above copyright
++   notice, this list of conditions and the following disclaimer in the
++   documentation and/or other materials provided with the distribution.
++
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++ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
++POSSIBILITY OF SUCH DAMAGE.
+diff --git b/LICENSE.LGPL-2.1 a/LICENSE.LGPL-2.1
+deleted file mode 100644
+index 27bb434..0000000
+--- b/LICENSE.LGPL-2.1
++++ /dev/null
+@@ -1,503 +0,0 @@
+-Valid-License-Identifier: LGPL-2.1
+-Valid-License-Identifier: LGPL-2.1+
+-SPDX-URL: https://spdx.org/licenses/LGPL-2.1.html
+-Usage-Guide:
+-  To use this license in source code, put one of the following SPDX
+-  tag/value pairs into a comment according to the placement
+-  guidelines in the licensing rules documentation.
+-  For 'GNU Lesser General Public License (LGPL) version 2.1 only' use:
+-    SPDX-License-Identifier: LGPL-2.1
+-  For 'GNU Lesser General Public License (LGPL) version 2.1 or any later
+-  version' use:
+-    SPDX-License-Identifier: LGPL-2.1+
+-License-Text:
+-
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+-Version 2.1, February 1999
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