Fixed that unmetered-used-only flag not properly set

The unmetered-used-only flag was not set properly so all
capabilities including metered ones were advertised to
connectivity services. Thus clients wanted internet
access were accidentally allowed to use it even when
data is turned off by the user.

Bug: 132369991
Test: Manually tested MMS on ATT with data disabled
Change-Id: Ib84f9116a8518e1257a187d63a5642144f19225e