Add documentation files including the LICENSE and CHANGELOG.md to the RPM

Signed-off-by: Avi Miller <avi.miller@oracle.com>

hack/make/.build-rpm/docker-engine.spec

@@ -165,6 +165,7 @@ install -p -m 644 contrib/syntax/nano/Dockerfile.nanorc $RPM_BUILD_ROOT/usr/shar
 
 # list files owned by the package here
 %files
+%doc AUTHORS CHANGELOG.md CONTRIBUTING.md LICENSE MAINTAINERS NOTICE README.md
 /%{_bindir}/docker
 /%{_libexecdir}/docker/dockerinit
 /%{_sysconfdir}/udev/rules.d/80-docker.rules