scripts/gdb: define maintainer

I'm proposing myself for keeping an eye on these scripts and integrating
contributions.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Wessel <jason.wessel@windriver.com>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: Ben Widawsky <ben@bwidawsk.net>
Cc: Borislav Petkov <bp@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

MAINTAINERS

@@ -4232,6 +4232,11 @@ W:	http://www.icp-vortex.com/
 S:	Supported
 F:	drivers/scsi/gdt*
 
+GDB KERNEL DEBUGGING HELPER SCRIPTS
+M:	Jan Kiszka <jan.kiszka@siemens.com>
+S:	Supported
+F:	scripts/gdb/
+
 GEMTEK FM RADIO RECEIVER DRIVER
 M:	Hans Verkuil <hverkuil@xs4all.nl>
 L:	linux-media@vger.kernel.org