[MAINTAINERS] add bsp_stm32h7xx MAINTAINERS lists

* [MAINTAINERS] add bsp_stm32h7xx MAINTAINERS lists

Author: LittleGreyG

MAINTAINERS

@@ -89,6 +89,14 @@ tag: bsp_stm32g030-tiny-board
 path: bsp/stm32/stm32g030-tiny-board
 owners: 下里巴人(hywing)<[email protected]>
 
+tag: bsp_stm32h743-st-nucleo
+path: bsp/stm32/stm32h743-st-nucleo
+owners: PengXu(LittleGreyG)<[email protected]>
+
+tag: bsp_stm32h750-artpi
+path: bsp/stm32/stm32h750-artpi
+owners: PengXu(LittleGreyG)<[email protected]>
+
 tag: documentation
 path: documentation
 owners: Chen Wang(unicornx)<[email protected]>, Guorui Li(GorrayLi)<[email protected]>, Lian Wang(lianux-mm)<[email protected]>