flutter-ics-homescreen: update recipe and make default

flutter-ics-homescreen: update recipe and make default

Update SRCREV in flutter-ics-homescreen to pick up:

94b78fd Update Kuksa databroker configuration scheme
ca2ba80 Re enable background animation.
4db7a1d Rename config directory to avoid collisions
17b4bf6 Fix hybrid animation.

As well, the patch to change the databroker port has been removed,
and the configuration yaml file updated to give the same effect.
Lastly, the agl-ivi-demo-platform-flutter image recipe has been
updated to use flutter-ics-homescreen.

Bug-AGL: SPEC-4969

Change-Id: I8a2999d09e38a22df01a27ce6ed52cf4dc0b551f
Signed-off-by: Scott Murray <scott.murray@konsulko.com>
Reviewed-on: https://gerrit.automotivelinux.org/gerrit/c/AGL/meta-agl-demo/+/29437
Reviewed-by: Justin Noel <justin@ics.com>
ci-image-build: Jenkins Job builder account
Reviewed-by: Lisandro Perez Meyer <lpmeyer@ics.com>
Tested-by: Jenkins Job builder account
Reviewed-by: Jan-Simon Moeller <jsmoeller@linuxfoundation.org>
ci-image-boot-test: Jenkins Job builder account