Adding check for speed optimised source validity (#14055)

* Adding check for speed optimised source validity
* Updated file location
* Common files to all HW
* Inadvertent inclusion
* VPATH reductions
- note simulator directory name change due to clash with MK file.
* Missed these MK files.
* Remove empty string

src/platform/SIMULATOR/platform_mcu.h

@@ -0,0 +1,30 @@
+/*
+ * This file is part of Betaflight.
+ *
+ * Betaflight is free software. You can redistribute this software
+ * and/or modify this software under the terms of the GNU General
+ * Public License as published by the Free Software Foundation,
+ * either version 3 of the License, or (at your option) any later
+ * version.
+ *
+ * Betaflight is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this software.
+ *
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#define IOCFG_OUT_PP         0
+#define IOCFG_OUT_OD         0
+#define IOCFG_AF_PP          0
+#define IOCFG_AF_OD          0
+#define IOCFG_IPD            0
+#define IOCFG_IPU            0
+#define IOCFG_IN_FLOATING    0