MAINTAINERS: add myself

I much appreciate Nick offering this role to me. Nevertheless there's
still a lot for me to learn here.

At this occasion also update my email address in the pre-existing, much
more narrow entry.
diff --git a/binutils/MAINTAINERS b/binutils/MAINTAINERS
index fda4a65..ee3cdd0 100644
--- a/binutils/MAINTAINERS
+++ b/binutils/MAINTAINERS
@@ -43,6 +43,7 @@
   Alan Modra <amodra@gmail.com>
   Michael Meissner <gnu@the-meissners.org>
   Richard Sandiford <rdsandiford@googlemail.com>
+  Jan Beulich <jbeulich@suse.com>
 
       --------- Maintainers ---------
 
@@ -94,7 +95,7 @@
   ix86		   H.J. Lu <hjl.tools@gmail.com>
   ix86 COFF	   DJ Delorie <dj@redhat.com>
   ix86 PE/COFF	   Dave Korn <dave.korn.cygwin@gmail.com>
-  ix86 INTEL MODE  Jan Beulich <jbeulich@novell.com>
+  ix86 INTEL MODE  Jan Beulich <jbeulich@suse.com>
   LM32             Jon Beniston <jon@beniston.com>
   LoongArch	   Chenghua Xu <xuchenghua@loongson.cn>
   LoongArch	   Zhensong Liu <liuzhensong@loongson.cn>