Add myself to gdb/MAINTAINERS

Author: KamathForAIX

gdb/MAINTAINERS

@@ -642,6 +642,7 @@ Sam James					sam@gentoo.org
 Janis Johnson					janisjo@codesourcery.com
 Jeff Johnston					jjohnstn@redhat.com
 Ruslan Kabatsayev				b7.10110111@gmail.com
+Aditya Kamath					Aditya.Kamath1@ibm.com
 Geoff Keating					geoffk@redhat.com
 Nils-Christian Kempke				nils-christian.kempke@intel.com
 Mark Kettenis					kettenis@gnu.org