ARM: stm32: Update MAINTAINERS file globs for STM32MP DHSOM

Update the MAINTAINERS file glob to cover all of STM32MP DHSOM related files.

Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
diff --git a/board/dhelectronics/dh_stm32mp1/MAINTAINERS b/board/dhelectronics/dh_stm32mp1/MAINTAINERS
index 865588f..fdd5790 100644
--- a/board/dhelectronics/dh_stm32mp1/MAINTAINERS
+++ b/board/dhelectronics/dh_stm32mp1/MAINTAINERS
@@ -2,8 +2,5 @@
 M:	Marek Vasut <marex@denx.de>
 L:	u-boot@dh-electronics.com
 S:	Maintained
-F:	arch/arm/dts/stm32mp15xx-dhcom*
-F:	board/dhelectronics/dh_stm32mp1/
-F:	configs/stm32mp15_dhcom_basic_defconfig
-F:	configs/stm32mp15_dhcor_basic_defconfig
-F:	include/configs/stm32mp15_dh_dhsom.h
+N:	stm32mp.*dh[cs]o
+N:	dh_stm32