[Mellanox]: Update SAI to v1.19.2

[nazariig]

Signed-off-by: Nazarii Hnydyn nazariig@nvidia.com

Why I did it

Advance to Mellanox SAI ver 1.19.2 to pick up dynamic Policy Based Hashing support.
For this version above the static Policy Based Hashing is no longer supported.
For detailed release notes check https://github.com/Mellanox/SAI-Implementation/blob/sonic2111/release%20notes.txt

How I did it

Updated SAI-Implementation submodule

How to verify it

1. make configure PLATFORM=mellanox
2. make target/sonic-mellanox.bin
   Run full regression as well as new dynamic PBH tests

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

• 201811
• 201911
• 202006
• 202012
• 202106

Description for the changelog

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

      .---.        .-----------
     /     \  __  /    ------
    / /     \(  )/    -----
   //////   ' \/ `   ---
  //// / // :    : ---
 // /   /  /`    '--
//          //..\\
       ====UU====UU====
           '//||\\`
             ''``

[nazariig]

Required for: sonic-net/sonic-swss#1782