MAINTAINERS: Add some missing defconfig files to existing entries

We have a few places where defconfigs were added (or renamed) and not
included in their previously listed MAINTAINERS entry, correct this.

Signed-off-by: Tom Rini <trini@konsulko.com>
Acked-by:  Adam Ford <aford173@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/board/amlogic/w400/MAINTAINERS b/board/amlogic/w400/MAINTAINERS
index 117f79e..19b1f30 100644
--- a/board/amlogic/w400/MAINTAINERS
+++ b/board/amlogic/w400/MAINTAINERS
@@ -5,6 +5,7 @@
 F:	board/amlogic/w400/
 F:	configs/bananapi-cm4-cm4io_defconfig
 F:	configs/bananapi-m2s_defconfig
+F:	configs/odroid-n2l_defconfig
 F:	configs/radxa-zero2_defconfig
 F:	doc/board/amlogic/w400.rst
 F:	doc/board/amlogic/bananapi-cm4io.rst