sstate: update to current upstream

Signed-off-by: Christopher Larson <kergoth@gmail.com>
mel: add MELDIR to BB_HASHBASE_WHITELIST

Signed-off-by: Christopher Larson <kergoth@gmail.com>
archive-release: add a few vardepsexclude

Signed-off-by: Christopher Larson <kergoth@gmail.com>
archive-release: drop unnecessary nostamp flag

Signed-off-by: Christopher Larson <kergoth@gmail.com>