Disable INTERNET/DUN when mobile data toggled off

This change disables INTERNET and DUN capabilities once the mobile data
toggle is turned off. Additionally, when the toggle is flipped, any
existing networks advertising either of those two capabilities will be
restarted in order to remove the capabilities.

Bug: 184864726
Test: atest FrameworksVcnTests
Merged-In: I81efeaa4b129443b08a597ff45e0037ddefeb414
Change-Id: I81efeaa4b129443b08a597ff45e0037ddefeb414
(cherry picked from commit fcacb067)