Fix some other SERIAL_ECHO

MK/module/laser/laser.cpp

@@ -178,7 +178,7 @@ void laser_wait_for_peripherals() {
 	while(!laser_peripherals_ok()) {
 		if (millis() > timeout) {
 			if (laser.diagnostics) {
-			  ECHO_LM(ERR, "Peripheral control board failed to respond");
+			  ECHO_LM(ER, "Peripheral control board failed to respond");
 			}
 			Stop();
 			break;

MK/module/motion/planner.cpp

@@ -889,8 +889,7 @@ float junction_deviation = 0.1;
 
     if (laser.diagnostics) {
       if (block->laser_status == LASER_ON) {
-        SERIAL_ECHO_START;
-         SERIAL_ECHOLNPGM("Laser firing enabled");
+         ECHO_LM(INFO, "Laser firing enabled");
        }
     }
   #endif // LASER

MK/module/motion/stepper.cpp

@@ -655,7 +655,7 @@ ISR(TIMER1_COMPA_vect) {
 
   #if ENABLED(LASER)
     if (laser.dur != 0 && (laser.last_firing + laser.dur < micros())) {
-      if (laser.diagnostics) SERIAL_ECHOLN("Laser firing duration elapsed, in interrupt handler");
+      if (laser.diagnostics) ECHO_LM(INFO,"Laser firing duration elapsed, in interrupt handler");
      laser_extinguish();
   #endif
 
@@ -717,7 +717,7 @@ ISR(TIMER1_COMPA_vect) {
          laser_fire(current_block->laser_intensity);
       }
       if (current_block->laser_status == LASER_OFF) {
-         if (laser.diagnostics) SERIAL_ECHOLN("Laser status set to off, in interrupt handler");
+         if (laser.diagnostics) ECHO_LM(INFO,"Laser status set to off, in interrupt handler");
          laser_extinguish();
       }
     #endif