Change SRCREV for flutter instrument cluster recipe

- Change SRCREV to use latest commit
- Change packagename from `ic` to `flutter_cluster_dashboard`
- Change kuksa_vss_init.py to add signals for navigation

Latest commit of the flutter app includes the new navigation
in the instrument cluster, more indicators and unnecessary
files and folders are also removed.

Bug-AGL: SPEC-4508

Change-Id: I766b410cd66774bfb84eeb0ce9654ed85e8d2af3
Signed-off-by: Aakash Solanki <tech2aks@gmail.com>