boards: matek_h743_bootloader fix NuttX CONFIG_ARCH_BOARD_CUSTOM_DIR

boards/matek/h743/nuttx-config/bootloader/defconfig

@@ -11,7 +11,7 @@
 # CONFIG_STM32H7_SYSCFG is not set
 CONFIG_ARCH="arm"
 CONFIG_ARCH_BOARD_CUSTOM=y
-CONFIG_ARCH_BOARD_CUSTOM_DIR="../../../../boards/matek/h743-slim/nuttx-config"
+CONFIG_ARCH_BOARD_CUSTOM_DIR="../../../../boards/matek/h743/nuttx-config"
 CONFIG_ARCH_BOARD_CUSTOM_DIR_RELPATH=y
 CONFIG_ARCH_BOARD_CUSTOM_NAME="px4"
 CONFIG_ARCH_CHIP="stm32h7"
@@ -51,7 +51,6 @@ CONFIG_LIBC_FLOATINGPOINT=y
 CONFIG_LIBC_LONG_LONG=y
 CONFIG_LIBC_STRERROR=y
 CONFIG_LIB_BOARDCTL=y
-CONFIG_FS_PROCFS_MAX_TASKS=8
 CONFIG_MEMSET_64BIT=y
 CONFIG_MEMSET_OPTSPEED=y
 CONFIG_PREALLOC_TIMERS=50