Ensure the kernel component don't call userspace API

Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>

boards/arm/a1x/pcduino-a10/src/a1x_bringup.c

@@ -40,7 +40,7 @@
 #include <nuttx/config.h>
 
 #ifdef CONFIG_FS_PROCFS
-#  include <sys/mount.h>
+#  include <nuttx/fs/fs.h>
 #endif
 
 #include <syslog.h>
@@ -100,7 +100,7 @@ int a1x_bringup(void)
 #ifdef CONFIG_FS_PROCFS
   /* Mount the procfs file system */
 
-  ret = mount(NULL, "/proc", "procfs", 0, NULL);
+  ret = nx_mount(NULL, "/proc", "procfs", 0, NULL);
   if (ret < 0)
     {
       syslog(LOG_ERR, "ERROR: Failed to mount procfs at /proc: %d\n", ret);