added parameter direction to doxygen comments. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9406 6f19259b-4bc3-4df7-8a09-765794883524
added parameter direction to doxygen comments. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9406 6f19259b-4bc3-4df7-8a09-765794883524