LICENSES: Improve the legibility of these files

A few newlines go a very long way.

Signed-off-by: Andrew Cooper <andrew.cooper3@citrix.com>
Acked-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Stefano Stabellini <sstabellini@kernel.org>

LICENSES/LGPL-2.0

@@ -1,15 +1,21 @@
 Valid-License-Identifier: LGPL-2.0
 Valid-License-Identifier: LGPL-2.0+
+
 SPDX-URL: https://spdx.org/licenses/LGPL-2.0.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 Library General Public License (LGPL) version 2.0 only' use:
     SPDX-License-Identifier: LGPL-2.0
+
   For 'GNU Library General Public License (LGPL) version 2.0 or any later
   version' use:
     SPDX-License-Identifier: LGPL-2.0+
+
 License-Text:
 
 GNU LIBRARY GENERAL PUBLIC LICENSE