Earlier the recipe was using 2.5.4 tar ball and a patch for upgrading to
2.5.9. Replaces these with pointer to 2.5.9 tarball.
Also noted that both 2.5.4 & 2.5.9 are GPLv2 sources.
Updated checksums and license of the recipe
Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>