Fix M112 with Emergency Parser

Marlin/src/MarlinCore.cpp

@@ -182,6 +182,7 @@
 #endif
 
 const char NUL_STR[] PROGMEM = "",
+           M112_KILL_STR[] PROGMEM = "M112 Shutdown",
            G28_STR[] PROGMEM = "G28",
            M21_STR[] PROGMEM = "M21",
            M23_STR[] PROGMEM = "M23 %s",

Marlin/src/MarlinCore.h

@@ -120,5 +120,5 @@ void protected_pin_err();
   void event_probe_failure();
 #endif
 
-extern const char NUL_STR[], G28_STR[], M21_STR[], M23_STR[], M24_STR[],
+extern const char NUL_STR[], M112_KILL_STR[], G28_STR[], M21_STR[], M23_STR[], M24_STR[],
                   SP_X_STR[], SP_Y_STR[], SP_Z_STR[], SP_E_STR[];

Marlin/src/gcode/control/M108_M112_M410.cpp

@@ -41,7 +41,7 @@ void GcodeSuite::M108() {
  * M112: Full Shutdown
  */
 void GcodeSuite::M112() {
-  kill(PSTR("M112 Shutdown"), nullptr, true);
+  kill(M112_KILL_STR, nullptr, true);
 }
 
 /**

Marlin/src/gcode/queue.cpp

@@ -440,7 +440,7 @@ void GCodeQueue::get_serial_commands() {
               wait_for_user = false;
             #endif
           }
-          if (strcmp(command, "M112") == 0) kill();
+          if (strcmp(command, "M112") == 0) kill(M112_KILL_STR, nullptr, true);
           if (strcmp(command, "M410") == 0) quickstop_stepper();
         #endif