MAINTAINERS: add/replace backups for some s390 areas

S390 PCI currently has no backup, add one.  Add an additional backup
for vfio-ccw and refresh the backup for vfio-ap.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Acked-by: Jason J. Herne <jjherne@linux.ibm.com>
Acked-by: Eric Farman <farman@linux.ibm.com>
Acked-by: Pierre Morel <pmorel@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Acked-by: Halil Pasic <pasic@linux.ibm.com>
Message-Id: <1616680509-8339-1-git-send-email-mjrosato@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>

MAINTAINERS

@@ -1516,6 +1516,7 @@ L: qemu-s390x@nongnu.org
 
 S390 PCI
 M: Matthew Rosato <mjrosato@linux.ibm.com>
+M: Eric Farman <farman@linux.ibm.com>
 S: Supported
 F: hw/s390x/s390-pci*
 F: include/hw/s390x/s390-pci*
@@ -1830,6 +1831,7 @@ F: docs/igd-assign.txt
 vfio-ccw
 M: Cornelia Huck <cohuck@redhat.com>
 M: Eric Farman <farman@linux.ibm.com>
+M: Matthew Rosato <mjrosato@linux.ibm.com>
 S: Supported
 F: hw/vfio/ccw.c
 F: hw/s390x/s390-ccw.c
@@ -1839,10 +1841,9 @@ T: git https://gitlab.com/cohuck/qemu.git s390-next
 L: qemu-s390x@nongnu.org
 
 vfio-ap
-M: Christian Borntraeger <borntraeger@de.ibm.com>
 M: Tony Krowiak <akrowiak@linux.ibm.com>
 M: Halil Pasic <pasic@linux.ibm.com>
-M: Pierre Morel <pmorel@linux.ibm.com>
+M: Jason Herne <jjherne@linux.ibm.com>
 S: Supported
 F: hw/s390x/ap-device.c
 F: hw/s390x/ap-bridge.c