bnxt_en: Fix VF attributes reporting.

The .ndo_get_vf_config() is returning the wrong qos attribute.  Fix
the code that checks and reports the qos and spoofchk attributes.  The
BNXT_VF_QOS and BNXT_VF_LINK_UP flags should not be set by default
during init. time.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>