HADOOP-15873. Add JavaBeans Activation Framework API to LICENSE.txt.

Contributed by Akira Ajisaka.

Signed-off-by: Xiao Chen <xiao@apache.org>

LICENSE.txt

@@ -1275,6 +1275,7 @@ grizzly-http 2.2.21
 grizzly-http-server 2.2.21
 grizzly-http-servlet 2.2.21
 grizzly-rcm 2.2.21
+JavaBeans Activation Framework 1.2.0
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 (CDDL 1.1)
 COMMON DEVELOPMENT AND DISTRIBUTION LICENSE (CDDL)Version 1.1