java-1.7.0-openjdk security update

1:1.7.0.241-2.6.20.0.0.1 - Update DISTRONAME in specfile 1:1.7.0.241-2.6.20.0 - Bump to 2.6.20 and OpenJDK 7u241-b01. - Drop PR1834/RH1022017 which is now handled by JDK-8228825 upstream. - Drop JDK-8226318/RH1738637 which is now included upstream. - Resolves: rhbz1753423...