MAINTAINERS: Add myself as Memory API maintainer

I'm not including Avi since he has already removed himself from the
KVM entry.  I'm not going to commit my patches without review.
Acked-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

MAINTAINERS

@@ -726,6 +726,16 @@ S: Odd Fixes
 F: gdbstub*
 F: gdb-xml/
 
+Memory API
+M: Paolo Bonzini <pbonzini@redhat.com>
+S: Supported
+F: include/exec/ioport.h
+F: ioport.c
+F: include/exec/memory.h
+F: memory.c
+F: include/exec/memory-internal.h
+F: exec.c
+
 SPICE
 M: Gerd Hoffmann <kraxel@redhat.com>
 S: Supported