[mellanox]: Enable CPLD update progress bar

[nazariig]

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

Summary:

1. Enabled CPLD update progress bar
2. Changed cpldupdate invocation: make output realtime

- What I did

• Enabled CPLD update progress bar

- How I did it

• Enabled inbuilt cpldupdate progress bar with --print-progress

- How to verify it

1. Install CPLD FW:

fwutil install chassis component CPLD1 fw /tmp/FUI000091_Burn_SN3800_CPLD000120_REV0600_CPLD000165_REV0400_CPLD000166_REV0300_CPLD000167_REV0100.vme

2. Observe progress bar:

New firmware will be installed, continue? [y/N]: y
Installing firmware:
    FUI000091_Burn_SN3800_CPLD000120_REV0600_CPLD000165_REV0400_CPLD000166_REV0300_CPLD000167_REV0100.vme
                 Lattice Semiconductor Corp.

             ispVME(tm) V12.2 Copyright 1998-2012.

               Customized for Mellanox products.

Using GPIO update!
Processing virtual machine file (FUI000091_Burn_SN3800_CPLD000120_REV0600_CPLD000165_REV0400_CPLD000166_REV0300_CPLD000167_REV0100.vme)......

... <--- progress bar

- Description for the changelog

• Added CPLD update progress bar

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

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

[volodymyrsamotiy]

Please add more details to the PR desription according to the listed below:

• Describe why this change is needed
• Describe all the changes that were done as part of this PR
  (there is also change of the way how cpldupdate tool is called)
• Add details to the "How I did it" section
• Describe verification steps under the "How to verify it" section
• Add details to the "Description for the changelog" section

[lgtm-com]

This pull request introduces 1 alert when merging 314ff6bfef4ca3bc186ab032d6176142f1a5f9bd into 7405f8c - view on LGTM.com

new alerts:

• 1 for Unused import

[nazariig]

@jleveque if no concerns - please help to merge