[Mellanox] Add ONIE and SSD platform components

[nazariig]

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

This PR introduces new ONIE/SSD platform components and implements firmware management API:
sonic-net/sonic-platform-common#82

- What I did

• Extended Mellanox Platform API with ONIE/SSD components
• Implemented extended firmware management API
• Improved ONIE updater tool
• Updated Mellanox SSD tool to v1.5

- How I did it

• N/A

- How to verify it

1. Show firmware status

root@sonic:/home/admin# fwutil show status
Chassis                  Module    Component    Version                  Description
-----------------------  --------  -----------  -----------------------  ----------------------------------------
x86_64-mlnx_msn3700c-r0  N/A       ONIE         2019.11-5.2.0020-9600    ONIE - Open Network Install Environment
                                   SSD          0202-000                 SSD - Solid-State Drive
                                   BIOS         0ACLH004_02.02.007_9600  BIOS - Basic Input/Output System
                                   CPLD1        CPLD000120_REV0223       CPLD - Complex Programmable Logic Device
                                   CPLD2        CPLD000162_REV0600       CPLD - Complex Programmable Logic Device
                                   CPLD3        CPLD000106_REV0100       CPLD - Complex Programmable Logic Device

- Description for the changelog

1. Added ONIE/SSD components
2. Updated Mellanox SSD tool to v1.5

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

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[lgtm-com]

This pull request introduces 1 alert when merging eaffff27ac13e2cc1bcd1df5262857b12cb53212 into 4da4955 - view on LGTM.com

new alerts:

• 1 for Unused import

[nazariig]

sonic-net/sonic-utilities#941