Update operating system options

[snecklifter]

Updates various modules with the current (4.4) list.

other_linux_kernel_4
other_linux_s390x
other_s390x
rhcos_x64
rhel_3x64
rhel_6_9_plus_ppc64
rhel_7_s390x
rhel_8x64
rhel_atomic7x64
sles_12_s390x
ubuntu_16_04_s390x
windows_2016x64
windows_2019x64

Removed (incorrect and duplicate):

windows_2008r2x64

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[mwperina]

Can't we fetch supported OS versions from API? If so, wouldn't it be better to introduce ovirt_vm_os_info module to fetch it for specific engine instance and just refer in documentation to this module?

@mnecas @akrejcir

[mnecas]

LGTM

[mnecas]

Okay I'll check if it would be better to create ovirt_vm_os_info. Meanwhile will keep the and changes update if necessary.
Sorry about the revert my mistake.

[snecklifter]

Okay I'll check if it would be better to create ovirt_vm_os_info. Meanwhile will keep the and changes update if necessary.
Sorry about the revert my mistake.

No probs, I did wonder if there was an easier way of maintaining the list... :)