install: Call "rake crowbar:update_config_db" on hardware-installing
install: Call "rake crowbar:update_config_db" on hardware-installing

When admin server reaches hardware-installing, it gets allocated its
admin IP address and this may trigger change in the configuration that
therefore needs to be regenerated.

rsalevsky/crowbar,dirkmueller/crowbar,rsalevsky/crowbar,SUSE-Cloud/crowbar,aplanas/crowbar,SUSE-Cloud/crowbar,dirkmueller/crowbar,crowbar/crowbar,crowbar/crowbar,aplanas/crowbar