[gcc r13-127] MAINTAINERS: Add myself as PowerPC port co-maintainer

[gcc r13-127] MAINTAINERS: Add myself as PowerPC port co-maintainer

[Kewen Lin]

https://gcc.gnu.org/g:b9b764bce89f104e48f797b33836d66073e73ebb

commit r13-127-gb9b764bce89f104e48f797b33836d66073e73ebb
Author: Kewen Lin <linkw@linux.ibm.com>
Date:   Thu May 5 00:14:31 2022 -0500

    MAINTAINERS: Add myself as PowerPC port co-maintainer
    
    Add myself as PowerPC port co-maintainer and to DCO section.
    
    ChangeLog:
    
            * MAINTAINERS: Add myself as PowerPC port co-maintainer and to DCO
            section.

Diff:
---
 MAINTAINERS | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 15973503722..87708942d39 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -112,6 +112,7 @@ riscv port		Andrew Waterman		<andrew@sifive.com>
 riscv port		Jim Wilson		<jim.wilson.gcc@gmail.com>
 rs6000/powerpc port	David Edelsohn		<dje.gcc@gmail.com>
 rs6000/powerpc port	Segher Boessenkool	<segher@kernel.crashing.org>
+rs6000/powerpc port	Kewen Lin		<linkw@gcc.gnu.org>
 rs6000 vector extns	Aldy Hernandez		<aldyh@redhat.com>
 rx port			Nick Clifton		<nickc@redhat.com>
 s390 port		Ulrich Weigand		<uweigand@de.ibm.com>
@@ -506,7 +507,6 @@ Ilya Leoshkevich				<iii@linux.ibm.com>
 Kriang Lerdsuwanakij				<lerdsuwa@users.sourceforge.net>
 Renlin Li					<renlin.li@arm.com>
 Xinliang David Li				<davidxl@google.com>
-Kewen Lin					<linkw@gcc.gnu.org>
 Chen Liqin					<liqin.gcc@gmail.com>
 Jiangning Liu					<jiangning.liu@arm.com>
 Sa Liu						<saliu@de.ibm.com>
@@ -717,6 +717,8 @@ information.
 Matthias Kretz					<m.kretz@gsi.de>
 Jeff Law					<jeffreyalaw@gmail.com>
 Jeff Law					<jlaw@tachyum.com>
+Kewen Lin					<linkw@gcc.gnu.org>
+Kewen Lin					<linkw@linux.ibm.com>
 Gaius Mulley					<gaiusmod2@gmail.com>
 Siddhesh Poyarekar				<siddhesh@gotplt.org>
 Navid Rahimi					<navidrahimi@microsoft.com>