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NETX Driver Integration Performance Improvements #16

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Note that this is a placeholder for the similar PR from the AM243x. This is for review and discussion only once the technical issues affecting the AM62A crypto acceleration are solved.

Performance improvements to the NETX driver integration by implementing zero copy packet handling between NETX and the interface drivers. This as well as some configuration changes improve performances considerably and reduces the likelihood of resource starvation in high throughput scenarios.

Note that this pull request is for review only and is not ready to be merged.

- implement zero-copy rx/tx.
- fix enet packet descriptor added to the wrong queue when netx packet is unavailable.
- enable https
- enable TLS1.3
- enable self-signed certificates
- set packet header alignment to cache alignment.

Fixes: SITSW-5614
Signed-off-by: Edouard Haas <[email protected]>
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