Signed-off-by: Nazarii Hnydyn [email protected]

- Why I did it

• Update Mellanox SDK/FW to 4.4.1912/XX.2008.1912

- How I did it

• N/A

- How to verify it

1. make configure PLATFORM=mellanox
2. make target/sonic-mellanox.bin

- Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006

- Description for the changelog

• SN3800 vs Cisco9236 - no link copper or optics - start sending IDLE before PHY_UP for specific OPNs

- A picture of a cute animal (not mandatory but encouraged)

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             ''``