UBUNTU: SAUCE: Set KVM_CAP_S390_MEM_OP_EXTENSION capability to 211

UBUNTU: SAUCE: Set KVM_CAP_S390_MEM_OP_EXTENSION capability to 211

BugLink: https://bugs.launchpad.net/bugs/1963901
Setting KVM_CAP_S390_MEM_OP_EXTENSION capability to 211 is required
to enable storage key checking for intercepted instruction and
to ensure compatibility with upstream.
The upstream merge request
"Merge branch 'kvm-ppc-cap-210' into kvm-next-5.18."
https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?h=next&id=4dfc4ec2b7f5a3a27d166ac42cf8a583fa2d3284
is referenced in LP: 1963901, but it includes and pulls in more changes
than needed - even changes for ppc64el and at the API doc
that are not relevant for s390x.
Hence this UBUNTU SAUCE patch, that limits the modification to the bare
minimum (a single line).

[Avoiding backport of "Merge branch 'kvm-ppc-cap-210' into kvm-next-5.18.",
 upstream commit 4dfc4ec2b7f5a3a27d166ac42cf8a583fa2d3284,
 and limiting change to the bare minimum.]
Signed-off-by: Frank Heimes <frank.heimes@canonical.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>