[redhat] rh_messages.h: Mark BlueField-4 as disabled

Kamal Heibrequested to merge
kheib/kernel-ark:bf4 into os-build

JIRA: https://issues.redhat.com/browse/RHEL-65534

The BlueField-4 device will not be available in the RHEL-10 time
frame.

Signed-off-by: Kamal Heib kheib@redhat.com

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