In stopVpnProfile(), it doesn't check if the caller's package
name is the same as the given one, so any app has chance to stop
the VPN profile of other apps.
Bug: 191382886
Test: atest FrameworksNetTests CtsNetTestCases \
CtsHostsideNetworkTests:HostsideVpnTests
Change-Id: Ib0a6e9ed191ff8c8bd55ce9902d894b6a339ace2
Merged-In: I254ffd1c08ec058d594b4ea55cbae5505f8497cc