wireplumber: update to 0.4 rc1

wireplumber: update to 0.4 rc1

* Update the bluetooth config to be aligned with the default upstream config
* Make a2dp streams use the Multimedia role instead of Communication
* Add wireplumber.conf in the agl config, which is now required

Bug-AGL: SPEC-3844
Change-Id: Ifdc61065593b7cbd366dd490689135f0973ebf66
Signed-off-by: George Kiagiadakis <george.kiagiadakis@collabora.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl/+/26340
Tested-by: Jenkins Job builder account
ci-image-build: Jenkins Job builder account
ci-image-boot-test: Jenkins Job builder account
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>