AIO-DX subcloud BnR: Restore playbook failed to connect to host via ssh due to double boot post host-unlock

[Joshua Kraitberg]

Brief Description
-----------------
It was noticed that on some systems after unlocking during a restore a second reboot would occur. This is not a crash but an intentional reboot triggered by puppet because the kernel args do not match what the system expects them to be.

Severity
--------
Major

Steps to Reproduce
------------------
Perform backup and restore on a system with non-default kernel args

Expected Behavior
------------------
One reboot after unlock

Actual Behavior
----------------
Two reboots after unlock

Reproducibility
---------------
100%

System Configuration
--------------------
AIO-SX

Branch/Pull Time/Commit
-----------------------
June 13, 2023 master

Last Pass
---------
Never

Timestamp/Logs
--------------
2023-06-13T01:08:38.741 Notice: 2023-06-13 01:08:36 +0000 Scope(Class[Platform::Compute::Grub::Audit]): Kernel Boot Argument Mismatch
2023-06-13T01:08:38.744 Notice: 2023-06-13 01:08:36 +0000 Scope(Class[Platform::Compute::Grub::Recovery]): Update Grub and Reboot
2023-06-13T01:08:38.746 Notice: 2023-06-13 01:08:36 +0000 Scope(Class[Platform::Compute::Grub::Update]): Updating grub configuration
...
2023-06-13T01:10:53.972 Debug: 2023-06-13 01:10:53 +0000 /Stage[post]/Platform::Compute::Grub::Update/Exec[Add the cpu arguments to /boot/efi/EFI/BOOT/boot.env]: The container Class[Platform::Compute::Grub::Update] will propagate my refresh event
2023-06-13T01:10:53.974 Debug: 2023-06-13 01:10:53 +0000 Class[Platform::Compute::Grub::Update]: The container Stage[post] will propagate my refresh event
2023-06-13T01:10:53.976 Debug: 2023-06-13 01:10:53 +0000 Exec[reboot-recovery](provider=posix): Executing 'reboot'
2023-06-13T01:10:53.979 Debug: 2023-06-13 01:10:53 +0000 Executing: 'reboot'

Test Activity
-------------
Developer Testing

Workaround
----------
Wait for second reboot

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.opendev.org/c/starlingx/ansible-playbooks/+/917718