[s390] s390/hypfs: include z/VM guests with access control group set

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2058616 Upstream Status: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=45424772 Tested: by IBM Conflicts: None

commit 663d34c8df98740f1e90241e78e456d00b3c6cad
s390/hypfs: include z/VM guests with access control group set

Currently if z/VM guest is allowed to retrieve hypervisor performance
data globally for all guests (privilege class B) the query is formed in a
way to include all guests but the group name is left empty. This leads to
that z/VM guests which have access control group set not being included
in the results (even local vm).

Change the query group identifier from empty to "any" to retrieve
information about all guests from any groups (or without a group set).

Signed-off-by: Mete Durlu mdurlu@redhat.com