[MAINTAINERS] add more MAINTAINERS lists

Author: LittleGreyG

MAINTAINERS

@@ -89,10 +89,13 @@ tag: bsp_stm32g030-tiny-board
 path: bsp/stm32/stm32g030-tiny-board
 owners: 下里巴人(hywing)<hywing.sir@qq.com>
 
-tag: bsp_stm32
+tag: bsp_stm32h743-st-nucleo
 path: bsp\stm32\stm32h743-st-nucleo
+owners: PengXu(LittleGreyG)<18825981694@163.com>
+
+tag: bsp_stm32h750-artpi
 path: bsp\stm32\stm32h750-artpi
-owners: Xu Peng(LittleGreyG)<18825981694@163.com>
+owners: PengXu(LittleGreyG)<18825981694@163.com>
 
 tag: documentation
 path: documentation