connman: fix missing dbus configuration files

Without connman.conf in /etc/dbus-1/system.d/, connmand cannot take
its name on the dbus system bus and will fail to start with a
permission denied error.

Signed-off-by: Mike Williams <mike@mikebwilliams.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/connman/connman.mk

@@ -12,6 +12,7 @@ CONNMAN_INSTALL_STAGING = YES
 CONNMAN_LICENSE = GPLv2
 CONNMAN_LICENSE_FILES = COPYING
 CONNMAN_CONF_OPTS += \
+	--with-dbusconfdir=/etc \
 	$(if $(BR2_PACKAGE_CONNMAN_DEBUG),--enable-debug,--disable-debug)		\
 	$(if $(BR2_PACKAGE_CONNMAN_ETHERNET),--enable-ethernet,--disable-ethernet)	\
 	$(if $(BR2_PACKAGE_CONNMAN_WIFI),--enable-wifi,--disable-wifi)			\