KVM: s390: Rename existing vcpu memop functions

KVM: s390: Rename existing vcpu memop functions

BugLink: https://bugs.launchpad.net/bugs/1962831
Makes the naming consistent, now that we also have a vm ioctl.

Signed-off-by: Janis Schoetterl-Glausch <scgl@linux.ibm.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Link: https://lore.kernel.org/r/20220211182215.2730017-8-scgl@linux.ibm.com
Signed-off-by: Christian Borntraeger <borntraeger@linux.ibm.com>
(cherry picked from commit 0e1234c02b77ef22d9cf78f86b98347ceb170090 linux-next)
Signed-off-by: Frank Heimes <frank.heimes@canonical.com>
Acked-by: Tim Gardner <tim.gardner@canonical.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>