be3c8c groups/231.native_packages_etc.group: rpm: Add xz and zstd payload support

Authored and Committed by Conan_Kudo 4 years ago
    groups/231.native_packages_etc.group: rpm: Add xz and zstd payload support
    
    RPM supports xz and zstd compressed RPMs, so we should make sure this
    is enabled and built.
    
    Signed-off-by: Neal Gompa <ngompa13@gmail.com>