MAINTAINERS: Add myself as Coverity model maintainer

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index fd335a4..b68cb7e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -783,6 +783,11 @@
 S: Maintained
 F: backends/baum.c
 
+Coverity model
+M: Markus Armbruster <armbru@redhat.com>
+S: Supported
+F: scripts/coverity-model.c
+
 CPU
 M: Andreas Färber <afaerber@suse.de>
 S: Supported