htcleo: add fix for PPP bug

It's a hack, we have to find out why we have to remove the mutexes

arch/arm/mach-msm/smd_tty.c

@@ -204,12 +204,12 @@ static int smd_tty_write(struct tty_struct *tty,
 	** never be able to write more data than there
 	** is currently space for
 	*/
-	mutex_lock(&smd_tty_lock);
+//	mutex_lock(&smd_tty_lock);
 	avail = smd_write_avail(info->ch);
 	if (len > avail)
 		len = avail;
 	ret = smd_write(info->ch, buf, len);
-	mutex_unlock(&smd_tty_lock);
+//	mutex_unlock(&smd_tty_lock);
 
 	return ret;
 }