MAINTAINERS: downgrade PPC KVM/TCG CPUs and pSeries to 'Odd Fixes'

The maintainer is no longer being paid to maintain these components. All
maintainership work is being done in his personal time since the middle
of the 7.2 development cycle.

Change the status of PPC KVM CPUs, PPC TCG CPUs and the pSeries machine
to 'Odd Fixes', reflecting that the maintainer no longer has exclusive
time to dedicate to them. It'll also (hopefully) keep expectations under
check when/if these components are used in a customer product.

Cc: Cédric Le Goater <clg@kaod.org>
Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Greg Kurz <groug@kaod.org>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20221117153218.182835-1-danielhb413@gmail.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 716d5a2..9a8c40a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -276,7 +276,7 @@
 R: David Gibson <david@gibson.dropbear.id.au>
 R: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
-S: Maintained
+S: Odd Fixes
 F: target/ppc/
 F: hw/ppc/ppc.c
 F: hw/ppc/ppc_booke.c
@@ -402,7 +402,7 @@
 R: Cédric Le Goater <clg@kaod.org>
 R: David Gibson <david@gibson.dropbear.id.au>
 R: Greg Kurz <groug@kaod.org>
-S: Maintained
+S: Odd Fixes
 F: target/ppc/kvm.c
 
 S390 KVM CPUs
@@ -1382,7 +1382,7 @@
 R: David Gibson <david@gibson.dropbear.id.au>
 R: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
-S: Maintained
+S: Odd Fixes
 F: hw/*/spapr*
 F: include/hw/*/spapr*
 F: hw/*/xics*