databroker client TLS configuration rework

databroker client TLS configuration rework

Changes:
- Bump SRCREVs for agl-service-audiomixer, agl-service-hvac, and
  libqtappfw to pick up server hostname and TLS configuration
  changes.
- Update databroker configuration in the configuration files for the
  service daemons and libqtappfw users to add the now required
  explicit TLS configuration.
- Fixed server hostname option in Qt cluster dashboard gateway demo
  conf file just in case it ever is required.

Bug-AGL: SPEC-5387, SPEC-5388

Change-Id: I84925b7a5e78268e047d421cc718ae79ed5028b4
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl-demo/+/30904
ci-image-build: Jenkins Job builder account
ci-image-boot-test: Jenkins Job builder account
Tested-by: Jenkins Job builder account
(cherry picked from commit b58af552093b4427253911956705420449b87fa0)
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl-demo/+/30872
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>