Switch to Megi's DP alt mode patches for 5.16

Merged Ghost User requested to merge megi-extcon into master

Megi created some patches for fusb302 that is used in the Pinephone Pro, which also uses the rk3399 as a base.

So this is a port of his patches, to also work for the Pinebook Pro and likely the RockPro64 too.

This also removes the old, now unused patches.

Signed-off-by: Dan Johansen strit@manjaro.org

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