MAINTAINERS: step back from PPC

I am not active anymore on the PPC maintainership, degrade my self as
standard Reviewer. Also degrade PowerNV and XIVE status since I am not
funded for this work.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20220929180946.848721-1-clg@kaod.org>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 8ae2e43..d86d21a 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -267,8 +267,8 @@
 F: tests/tcg/openrisc/
 
 PowerPC TCG CPUs
-M: Cédric Le Goater <clg@kaod.org>
 M: Daniel Henrique Barboza <danielhb413@gmail.com>
+R: Cédric Le Goater <clg@kaod.org>
 R: David Gibson <david@gibson.dropbear.id.au>
 R: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
@@ -392,8 +392,8 @@
 F: target/mips/sysemu/
 
 PPC KVM CPUs
-M: Cédric Le Goater <clg@kaod.org>
 M: Daniel Henrique Barboza <danielhb413@gmail.com>
+R: Cédric Le Goater <clg@kaod.org>
 R: David Gibson <david@gibson.dropbear.id.au>
 R: Greg Kurz <groug@kaod.org>
 S: Maintained
@@ -1365,8 +1365,8 @@
 F: tests/avocado/ppc_prep_40p.py
 
 sPAPR (pseries)
-M: Cédric Le Goater <clg@kaod.org>
 M: Daniel Henrique Barboza <danielhb413@gmail.com>
+R: Cédric Le Goater <clg@kaod.org>
 R: David Gibson <david@gibson.dropbear.id.au>
 R: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
@@ -1387,7 +1387,7 @@
 PowerNV (Non-Virtualized)
 M: Cédric Le Goater <clg@kaod.org>
 L: qemu-ppc@nongnu.org
-S: Maintained
+S: Odd Fixes
 F: docs/system/ppc/powernv.rst
 F: hw/ppc/pnv*
 F: hw/intc/pnv*
@@ -2333,7 +2333,7 @@
 XIVE
 M: Cédric Le Goater <clg@kaod.org>
 L: qemu-ppc@nongnu.org
-S: Supported
+S: Odd Fixes
 F: hw/*/*xive*
 F: include/hw/*/*xive*
 F: docs/*/*xive*