Add  QUERY_ALL_PACKAGES permission to VpnDialogs

This avoids NameNotFoundException when calling VpnConfig.getVpnLabel from Android 11+ (R+)

Bug: 172041314
Change-Id: I27bfa457803a6f974772dd2861c725ca6fa4f84f
Test: Manual. Connect to a VPN and trigger the vpn dialogs
1 file changed