force sync at shutdown: instant action now working all the time

FunKey/board/funkey/rootfs-overlay/usr/local/sbin/shutdown_funkey

@@ -1,19 +1,22 @@
 #!/bin/sh
 
+# Sync before all else
+sync
+
+# Notif fullscreen "Shutting down"
+notif_set 0 "^^^^^^^^      SHUTTING DOWN...^^^^^^^^"
+
 # Notify system, reboot in progress
 REBOOTING_FILE="/run/rebooting"
 touch $REBOOTING_FILE
 
-# Notif fullscreen "Shutting down"
-notif_set 0 "^^^^^^^^      SHUTTING DOWN...^^^^^^^^"
-
 # Shutdown amp
 start_audio_amp 0 >/dev/null 2>&1
 
 # Force Read Only 
 ro
 
-# Unmount writeable partition to force 
+# Force unmount writeable partition
 umount -r /mnt
 
 # Poweroff