wolfssl: change defaults to cover wpa_supplicant needs

wolfssl: change defaults to cover wpa_supplicant needs

Implicetely selecting the required options via Kconfig snippet from
hostapd worked fine in local builds when using menuconfig but confused
the buildbots which (in phase1) may build wpad-mini and hence already
come with CONFIG_WPA_WOLFSSL being defined as unset which then won't
trigger changing the defaults of wolfssl.

Work around by explicitely reflecting wpa_supplicant's needs in
wolfssl's default settings to make buildbots happy.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>