mss: service: stop spamming getprop commands

* This probably only slows down the system during boot
* Instead, just wait 5 seconds before attempting to read the sys.boot_completed property again

* This is not an urgent service anyways, we can wait

Signed-off-by: chickendrop89 <[email protected]>

service.sh

@@ -18,7 +18,7 @@
 # Wait until system boot is *really* completed
 while [ "$(getprop sys.boot_completed)" != "1" ]; 
   do
-    sleep 1
+    sleep 5
 done
 
 # Import common functions from file