Add a CTS test for private DNS on VPNs.

Bug: 122652057
Test: atest com.android.cts.net.HostsideVpnTests passes with fix, fails without it
Change-Id: Idc0690dfe6d000337b272bbd55ea4d773aebd5ed
Merged-In: Ifa2710aed7e773a24786cc3e4912f126547dfe0b
1 file changed
tree: f84d9d9d977d71c8e6d017b0073f4acf775c0aff
  1. tests/