LPC176x Framework update (#15722)

Changes required for compatibility with framework-arduino-lpc176x 0.2.0

Marlin/src/pins/lpc1769/pins_COHESION3D_REMIX.h

@@ -25,7 +25,7 @@
  * Cohesion3D ReMix pin assignments
  */
 
-#ifndef LPC1769
+#ifndef MCU_LPC1769
   #error "Oops! Make sure you have the LPC1769 environment selected in your IDE."
 #endif
 
@@ -98,13 +98,13 @@
 // Analog Inputs
 //  3.3V max when defined as an analog input
 //
-#define TEMP_0_PIN          0   // P0_23
-#define TEMP_BED_PIN        1   // P0_24
-#define TEMP_1_PIN          2   // P0_25
+#define TEMP_0_PIN          P0_23_A0
+#define TEMP_BED_PIN        P0_24_A1
+#define TEMP_1_PIN          P0_25_A2
 #if ENABLED(FILAMENT_WIDTH_SENSOR)
-  #define FILWIDTH_PIN      3   // P0_26
+  #define FILWIDTH_PIN      P0_26_A3
 #else
-  #define TEMP_2_PIN        3   // P0_26
+  #define TEMP_2_PIN        P0_26_A3
 #endif
 
 //