MAINTAINERS: Add maintainers for siemens/chili and kontron/bsl6

Add Nico Huber and Felix Singer as maintainers for the mainboards
siemens/chili and kontron/bsl6.

Change-Id: Ic70004d6f4c87b308246031429794312cc37107a
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47843
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
diff --git a/MAINTAINERS b/MAINTAINERS
index 1972c88..b4b685c 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -282,6 +282,14 @@
 
 
 
+KONTRON BSL6 MAINBOARD
+M:	Felix Singer <felixsinger@posteo.net>
+M:	Nico Huber <nico.h@gmx.de>
+S:	Supported
+F:	src/mainboard/kontron/bsl6/
+
+
+
 LENOVO MAINBOARDS
 M:	Alexander Couzens <lynxis@fe80.eu>
 M:	Patrick Rudolph <siro@das-labor.org>
@@ -379,6 +387,12 @@
 
 
 
+SIEMENS CHILI MAINBAORD
+M:	Felix Singer <felixsinger@posteo.net>
+M:	Nico Huber <nico.h@gmx.de>
+S:	Supported
+F:	src/mainboard/siemens/chili/
+
 SIEMENS MC_xxxx MAINBOARDS
 M:	Werner Zeh <werner.zeh@siemens.com>
 S:	Maintained