[hash] update GH frontend with IPV6_FLOW_LABEL for ECMP/LAG switch hash configuration

[ayurkiv-nvda]

What I did

CLI updated with ability to configure generic hash with IPV6_FLOW_LABEL parameter

How I did it

Updated HASH_FIELD_LIST
Updated sonic-utilities tests
Updated doc file

How to verify it

root@sonic:/home/admin# config switch-hash global ecmp-hash IPV6_FLOW_LABEL
root@sonic:/home/admin# config switch-hash global lag-hash IPV6_FLOW_LABEL
root@sonic:/home/admin# show switch-hash global
+--------+-----------------------------------+
| Hash   | Configuration                     |
+========+===================================+
| ECMP   | +-----------------+-------------+ |
|        | | Hash Field      | Algorithm   | |
|        | |-----------------+-------------| |
|        | | IPV6_FLOW_LABEL | CRC         | |
|        | +-----------------+-------------+ |
+--------+-----------------------------------+
| LAG    | +-----------------+-------------+ |
|        | | Hash Field      | Algorithm   | |
|        | |-----------------+-------------| |
|        | | IPV6_FLOW_LABEL | XOR         | |
|        | +-----------------+-------------+ |
+--------+-----------------------------------+

root@sonic:/home/admin# show switch-hash capabilities
+--------+-------------------------------------+
| Hash   | Capabilities                        |
+========+=====================================+
| ECMP   | +-------------------+-------------+ |
|        | | Hash Field        | Algorithm   | |
|        | |-------------------+-------------| |
|        | | SRC_IP            | CRC         | |
|        | | DST_IP            | XOR         | |
|        | | INNER_SRC_IP      | RANDOM      | |
|        | | INNER_DST_IP      | CRC_CCITT   | |
|        | | VLAN_ID           |             | |
|        | | IP_PROTOCOL       |             | |
|        | | ETHERTYPE         |             | |
|        | | L4_SRC_PORT       |             | |
|        | | L4_DST_PORT       |             | |
|        | | SRC_MAC           |             | |
|        | | DST_MAC           |             | |
|        | | IN_PORT           |             | |
|        | | INNER_IP_PROTOCOL |             | |
|        | | INNER_ETHERTYPE   |             | |
|        | | INNER_L4_SRC_PORT |             | |
|        | | INNER_L4_DST_PORT |             | |
|        | | INNER_SRC_MAC     |             | |
|        | | INNER_DST_MAC     |             | |
|        | | IPV6_FLOW_LABEL   |             | |
|        | +-------------------+-------------+ |
+--------+-------------------------------------+
| LAG    | +-------------------+-------------+ |
|        | | Hash Field        | Algorithm   | |
|        | |-------------------+-------------| |
|        | | SRC_IP            | CRC         | |
|        | | DST_IP            | XOR         | |
|        | | INNER_SRC_IP      | RANDOM      | |
|        | | INNER_DST_IP      | CRC_CCITT   | |
|        | | VLAN_ID           |             | |
|        | | IP_PROTOCOL       |             | |
|        | | ETHERTYPE         |             | |
|        | | L4_SRC_PORT       |             | |
|        | | L4_DST_PORT       |             | |
|        | | SRC_MAC           |             | |
|        | | DST_MAC           |             | |
|        | | IN_PORT           |             | |
|        | | INNER_IP_PROTOCOL |             | |
|        | | INNER_ETHERTYPE   |             | |
|        | | INNER_L4_SRC_PORT |             | |
|        | | INNER_L4_DST_PORT |             | |
|        | | INNER_SRC_MAC     |             | |
|        | | INNER_DST_MAC     |             | |
|        | | IPV6_FLOW_LABEL   |             | |
|        | +-------------------+-------------+ |
+--------+-------------------------------------+

Previous command output (if the output of a command-line utility has changed)

New command output (if the output of a command-line utility has changed)

[mssonicbld]

/azp run

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