fix wired ethernet for flasher images

[rcooke-warwick]

wired ethernet sharing was broken for flasher device types.

It would share the ethernet succesfully with the DUT while it was booted into the flasher image, but then once it boots with the boot image, it would not connect to the testbots ethernet, unless you recreated the ethernet connection.

setting auto-connect to true seemd to fix it when I was testing. Ethernet connectivity is broken anyway, so its worth trying this fix imo

Change-type: patch Signed-off-by: Ryan Cooke ryan@balena.io

[rcooke-warwick]

@balena-ci I self-certify!

[rcooke-warwick]

@vipulgupta2048 added description to PR comment