MIC: avoid _mm512_knot (converts to __mmask16)
MIC: avoid _mm512_knot (converts to __mmask16)

instead use Mask::operator! and then capture the correct type via
Mask::data().

Signed-off-by: Matthias Kretz <372ea4eca737a13cd010ee806d4ce7b98ee71550@kde.org>

chr-engwer/Vc,chr-engwer/Vc,VcDevel/Vc,VcDevel/Vc,chr-engwer/Vc,VcDevel/Vc,VcDevel/Vc