configs: Enable https for wget on qemu arm64

configs: Enable https for wget on qemu arm64

QEMU already has an lwip variant of a defconfig. That defconfig
is also configured with mbedTLS by default. So let's enable the
remaining config options to enable wget for https:// as well
and test that codepath in the CI

Reviewed-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Peter Robinson <pbrobinson@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>