Although such 9.0 clients support memfd transport, they have an
iochannel bug that would break memfd audio if they're run in 32
bit mode over a 64-bit kernel. Influence them to use the POSIX
shared memory model instead.

Also bump the protocol version to exclusively mark such v9.0
libraries. Check commit 451d1d67 for further details.

BugLink: https://bugs.freedesktop.org/show_bug.cgi?id=97769Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>