Add NXP patch for dpdmux interfaces problem

[RafalArciszewski]

Hello,
I had a problem with dpdmux interfaces status problem. The details are here:
https://community.nxp.com/t5/Layerscape/LX2160A-DPDK-not-working-TX-dropped/m-p/2135514#M15909

There is a patch from NXP for this. Any chance it could be included in develop-ls-5.15.71-2.2.0 branch?

0001-dpaa2-eth-dpaa2-mac-dpaa2-switch-Bugfix-for-phylink-.patch

Regards,
Rafał Arciszewski