connman: update to 0.78

connman: update to 0.78

Updates the package to 0.78 bringing changes done on meta-oe and extra
cleanups as:

* xtables_version.patch: removed as it has been merged upstream

* use sed to fix dbus access policy

* remove build depends on dhclient as connman has an internal client
  now

* make wifi and bluetooth building optional

* add ppp in depends that is used by some plugins

* add ntp in depends and enable ntp plugin

* package tools

* enable fake plugin

This uses PR as "r1" since it was previously available on meta-oe.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Joshua Lock <josh@linux.intel.com>