board: tbs2910: Set all board dts files as maintained

This also includes the imx6q-tbs2910-u-boot.dtsi file now.

Signed-off-by: Soeren Moch <smoch@web.de>
Reviewed-by: Fabio Estevam <festevam@denx.de>
diff --git a/board/tbs/tbs2910/MAINTAINERS b/board/tbs/tbs2910/MAINTAINERS
index 1e3c0d0..72f98d1 100644
--- a/board/tbs/tbs2910/MAINTAINERS
+++ b/board/tbs/tbs2910/MAINTAINERS
@@ -1,7 +1,7 @@
 TBS2910 BOARD
 M:	Soeren Moch <smoch@web.de>
 S:	Maintained
-F:	arch/arm/dts/imx6q-tbs2910.dts
+F:	arch/arm/dts/imx6q-tbs2910*
 F:	board/tbs/tbs2910/
 F:	configs/tbs2910_defconfig
 F:	doc/board/tbs/