GCU:Add support for additional WRED profile parameters

[devesh-nexthop]

What I did

Add support for WRED yellow and green parameters.

How I did it

Added these parameters to operation validators config.

How to verify it

Applied below config with apply-patch:

cat config_wred.json
[ 
  { 
    "op": "replace",
    "path": "/WRED_PROFILE/AZURE_LOSSLESS/green_min_threshold",
    "value": "524288"
  },
  { 
    "op": "replace",
    "path": "/WRED_PROFILE/AZURE_LOSSLESS/yellow_max_threshold",
    "value": "1048576"
  },
  { 
    "op": "replace",
    "path": "/WRED_PROFILE/AZURE_LOSSLESS/yellow_min_threshold",
    "value": "524288"
  },
  { 
    "op": "replace",
    "path": "/WRED_PROFILE/AZURE_LOSSLESS/green_max_threshold",
    "value": "1048576"
  },
  { 
    "op": "replace",
    "path": "/WRED_PROFILE/AZURE_LOSSLESS/red_max_threshold",
    "value": "1048576"
  },
  { 
    "op": "replace",
    "path": "/WRED_PROFILE/AZURE_LOSSLESS/yellow_drop_probability",
    "value": "15"
  },
  { 
    "op": "replace",
    "path": "/WRED_PROFILE/AZURE_LOSSLESS/green_drop_probability",
    "value": "15"
  },
  { 
    "op": "replace",
    "path": "/WRED_PROFILE/AZURE_LOSSLESS/red_drop_probability",
    "value": "15"
  },
  { 
    "op": "replace",
    "path": "/WRED_PROFILE/AZURE_LOSSLESS/red_min_threshold",
    "value": "524288"
  }
]

Verified that config gets applied without any error:

sudo config apply-patch config_wred.json 
Patch Applier: localhost: Patch application starting.
Patch Applier: localhost: Patch: [{"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/green_min_threshold", "value": "524288"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/yellow_max_threshold", "value": "1048576"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/yellow_min_threshold", "value": "524288"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/green_max_threshold", "value": "1048576"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/red_max_threshold", "value": "1048576"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/yellow_drop_probability", "value": "15"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/green_drop_probability", "value": "15"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/red_drop_probability", "value": "15"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/red_min_threshold", "value": "524288"}]
Patch Applier: localhost getting current config db.
Patch Applier: localhost: simulating the target full config after applying the patch.
Patch Applier: localhost: validating all JsonPatch operations are permitted on the specified fields
Patch Applier: localhost: validating target config does not have empty tables,
                            since they do not show up in ConfigDb.
Patch Applier: localhost: sorting patch updates.
Patch Applier: The localhost patch was converted into 1 change:
Patch Applier: localhost: applying 1 change in order:
Patch Applier:   * [{"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/green_drop_probability", "value": "15"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/green_max_threshold", "value": "1048576"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/green_min_threshold", "value": "524288"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/red_drop_probability", "value": "15"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/red_max_threshold", "value": "1048576"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/red_min_threshold", "value": "524288"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/yellow_drop_probability", "value": "15"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/yellow_max_threshold", "value": "1048576"}, {"op": "replace", "path": "/WRED_PROFILE/AZURE_LOSSLESS/yellow_min_threshold", "value": "524288"}]
Patch Applier: localhost: verifying patch updates are reflected on ConfigDB.
Patch Applier: localhost patch application completed.
Patch applied successfully.

closes sonic-net/sonic-buildimage#24933

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