MAINTAINERS: Add Greg Kurz as co-maintainer for ppc

Greg has agreed to be co-maintainer of the ppc target and machines.
This should avoid repeats of the problem we had in qemu-5.2 where a
last minute fix was needed while I was on holiday.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Greg Kurz <groug@kaod.org>

MAINTAINERS

@@ -272,6 +272,7 @@ F: tests/tcg/openrisc/
 
 PowerPC TCG CPUs
 M: David Gibson <david@gibson.dropbear.id.au>
+M: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Maintained
 F: target/ppc/
@@ -394,6 +395,7 @@ F: target/mips/kvm.c
 
 PPC KVM CPUs
 M: David Gibson <david@gibson.dropbear.id.au>
+M: Greg Kurz <groug@kaod.org>
 S: Maintained
 F: target/ppc/kvm.c
 
@@ -1184,18 +1186,21 @@ PowerPC Machines
 ----------------
 405
 M: David Gibson <david@gibson.dropbear.id.au>
+M: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Odd Fixes
 F: hw/ppc/ppc405_boards.c
 
 Bamboo
 M: David Gibson <david@gibson.dropbear.id.au>
+M: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Odd Fixes
 F: hw/ppc/ppc440_bamboo.c
 
 e500
 M: David Gibson <david@gibson.dropbear.id.au>
+M: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Odd Fixes
 F: hw/ppc/e500*
@@ -1209,6 +1214,7 @@ F: pc-bios/u-boot.e500
 
 mpc8544ds
 M: David Gibson <david@gibson.dropbear.id.au>
+M: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Odd Fixes
 F: hw/ppc/mpc8544ds.c
@@ -1217,6 +1223,7 @@ F: hw/ppc/mpc8544_guts.c
 New World (mac99)
 M: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
 R: David Gibson <david@gibson.dropbear.id.au>
+R: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Odd Fixes
 F: hw/ppc/mac_newworld.c
@@ -1236,6 +1243,7 @@ F: pc-bios/qemu_vga.ndrv
 Old World (g3beige)
 M: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
 R: David Gibson <david@gibson.dropbear.id.au>
+R: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Odd Fixes
 F: hw/ppc/mac_oldworld.c
@@ -1249,6 +1257,8 @@ F: pc-bios/qemu_vga.ndrv
 
 PReP
 M: Hervé Poussineau <hpoussin@reactos.org>
+R: David Gibson <david@gibson.dropbear.id.au>
+R: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Maintained
 F: hw/ppc/prep.c
@@ -1265,6 +1275,7 @@ F: tests/acceptance/ppc_prep_40p.py
 
 sPAPR
 M: David Gibson <david@gibson.dropbear.id.au>
+M: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Supported
 F: hw/*/spapr*
@@ -1282,6 +1293,7 @@ F: tests/qtest/libqos/rtas*
 PowerNV (Non-Virtualized)
 M: Cédric Le Goater <clg@kaod.org>
 M: David Gibson <david@gibson.dropbear.id.au>
+M: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Maintained
 F: hw/ppc/pnv*
@@ -1301,6 +1313,8 @@ F: hw/ppc/virtex_ml507.c
 
 sam460ex
 M: BALATON Zoltan <balaton@eik.bme.hu>
+R: David Gibson <david@gibson.dropbear.id.au>
+R: Greg Kurz <groug@kaod.org>
 L: qemu-ppc@nongnu.org
 S: Maintained
 F: hw/ppc/sam460ex.c
@@ -2088,8 +2102,9 @@ F: tests/qtest/fw_cfg-test.c
 T: git https://github.com/philmd/qemu.git fw_cfg-next
 
 XIVE
-M: David Gibson <david@gibson.dropbear.id.au>
 M: 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
 S: Supported
 F: hw/*/*xive*