Update myself to MAINTAINERS

This updates myself to the right place in MAINTAINERS.

gcc/ChangeLog

2020-03-11  Bin Bin Lv  <shlb@linux.ibm.com>

	* MAINTAINERS (Write After Approval): Update myself.

MAINTAINERS

@@ -496,8 +496,8 @@ Carl Love					<cel@us.ibm.com>
 Martin v. Löwis					<loewis@informatik.hu-berlin.de>
 H.J. Lu						<hjl.tools@gmail.com>
 Xiong Hu Luo					<luoxhu@linux.vnet.ibm.com>
-Christophe Lyon					<christophe.lyon@st.com>
 Bin Bin Lv					<shlb@linux.ibm.com>
+Christophe Lyon					<christophe.lyon@st.com>
 Luis Machado					<luisgpm@br.ibm.com>
 Ziga Mahkovec					<ziga.mahkovec@klika.si>
 Matthew Malcomson				<matthew.malcomson@arm.com>