Check current APF capabilities in dump

Sta+Sta capable wifi interfaces start as secondary interface, so their provisioning configuration does not indicate APF support. APF support is enabled as soon as the interface switches to primary, but dump() used to still report "No active ApfFilter" (which confused me for longer than I would like to admit).

Change-Id: Ifdb0992f5cd70587d22e2c6ada53a8bfcbff739b
Test: TH
1 file changed