[fwutil]: Set default socket timeout for FW download to 30 sec

[nazariig]

Signed-off-by: Nazarii Hnydyn [email protected]

- What I did

• Fixed CLI endless wait when installing FW from URL and network goes down

- How I did it

• Added default socket 30 sec timeout

- How to verify it

1. Connect to switch via serial console
2. Start FW installation form URL
3. Shutdown management interface

root@sonic:/home/admin# fwutil install chassis component BIOS fw http://sonic-server/fwutil/bios/x86_64-mlnx_msn3800-r0_latest/0ACLH004.rom
New firmware will be installed, continue? [y/N]: y
Downloading firmware:
    [#-------------------------------------------------------------------]    2%
Error: timed out. Aborting...
Aborted!

root@sonic:/home/admin# cat /var/log/syslog | grep fwutil
Feb 25 15:06:20.718495 sonic INFO fwutil: Firmware download started: component=x86_64-mlnx_msn3800-r0/BIOS, firmware=http://sonic-server/fwutil/bios/x86_64-mlnx_msn3800-r0_latest/0ACLH004.rom
Feb 25 15:06:50.770669 sonic ERR fwutil: Firmware download ended: component=x86_64-mlnx_msn3800-r0/BIOS, firmware=http://sonic-server/fwutil/bios/x86_64-mlnx_msn3800-r0_latest/0ACLH004.rom, status=failure, exception=timed out

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

root@sonic:/home/admin# fwutil install chassis component BIOS fw http://sonic-server/fwutil/bios/x86_64-mlnx_msn3800-r0_latest/0ACLH004.rom
New firmware will be installed, continue? [y/N]: y
Downloading firmware:
    [#-------------------------------------------------------------------]    2%

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

root@sonic:/home/admin# fwutil install chassis component BIOS fw http://sonic-server/fwutil/bios/x86_64-mlnx_msn3800-r0_latest/0ACLH004.rom
New firmware will be installed, continue? [y/N]: y
Downloading firmware:
    [#-------------------------------------------------------------------]    2%
Error: timed out. Aborting...
Aborted!

[svc-acs]

Build finished. 248 tests run, 10 skipped, 1 failed.

[nazariig]

@sujinmkang please have a look

[nazariig]

retest this please