Oracle Linux rhel8stig_bootloader_path and RHEL-08-020030 fix

[BillSkiCO]

Addressing Oracle Linux distribution identification issue #239

Overall Review of Changes:

• Oracle Linux distribution was being incorrectly identified in the prelim.yml task
• RHEL-08-020030 related task fails if lock-enabled is already defined in dconf

Issue Fixes:
Resolves #239
Resolves #241

Enhancements:
N/A

How has this been tested?:

• Ansible 2.16
• Oracle Linux 8.8

1. Observed successful variable assignment of rhel8stig_bootloader_path to /boot/efi/EFI/redhat

TASK [ansible-lockdown.RHEL8-STIG : PRELIM | set fact if UEFI boot | Oracle Linux] *******
ok: [localhost] => {"ansible_facts": {"rhel8stig_bootloader_path": "/boot/efi/EFI/redhat", "rhel8stig_legacy_boot": false}, "changed": false}
...
...
...
TASK [ansible-lockdown.RHEL8-STIG : PRELIM | output bootloader and efi state] ************
ok: [localhost] => {
    "msg": [
        "bootloader path set to /boot/efi/EFI/redhat",
        "legacy boot equals False"
    ]
}

2. Observed successful enforcement of lock-enabled=true if lock-enabled was already implemented in dconf

[uk-bolly]

hi @BillSkiCO

Thank you for taking the time to write and provide this PR, We are happy to take the change, although we have noted that the pipeline has failed. We have seen that your gpg key has expired so this will also need to be updated and a repushed. This should hopefully resolve the issues or enable us to investigate the pipeline further.
Many thanks

uk-bolly

[BillSkiCO]

Closing PR to resign