MAINTAINERS: Use Daniel Thompson's korg address for kgdb work

Going forward, I'll be using my kernel.org address for upstream work.

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20241108-new-maintainer-address-2-v1-2-47c9d71aac11@linaro.org
Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>

Author: Daniel Thompson

MAINTAINERS

@@ -12659,7 +12659,7 @@ F:	samples/kfifo/
 
 KGDB / KDB /debug_core
 M:	Jason Wessel <jason.wessel@windriver.com>
-M:	Daniel Thompson <daniel.thompson@linaro.org>
+M:	Daniel Thompson <danielt@kernel.org>
 R:	Douglas Anderson <dianders@chromium.org>
 L:	kgdb-bugreport@lists.sourceforge.net
 S:	Maintained