updatehub-config: Simplify do_install code
updatehub-config: Simplify do_install code

We can install the global configuration file using a single command,
so rework the code to do that.

Signed-off-by: Otavio Salvador <1d31b11c1b92bf5d043d36edfe7174db39a6b891@ossystems.com.br>

fbertux/meta-updatehub,fbertux/meta-updatehub,fbertux/meta-updatehub,UpdateHub/meta-updatehub,UpdateHub/meta-updatehub,UpdateHub/meta-updatehub