Fix dummy thermistors for Bed, Chamber, Probe (#20247)

Marlin/src/inc/Conditionals_post.h

@@ -1774,12 +1774,19 @@
   #define HAS_TEMP_ADC_CHAMBER 1
 #endif
 
-#if HAS_HOTEND && ANY(HAS_TEMP_ADC_0, HEATER_0_USES_MAX6675, HEATER_0_DUMMY_THERMISTOR)
+#define HAS_TEMP(N) ANY(HAS_TEMP_ADC_##N, HEATER_##N##_USES_MAX6675, HEATER_##N##_DUMMY_THERMISTOR)
+#if HAS_HOTEND && HAS_TEMP(0)
   #define HAS_TEMP_HOTEND 1
 #endif
-#define HAS_TEMP_BED        HAS_TEMP_ADC_BED
-#define HAS_TEMP_PROBE      HAS_TEMP_ADC_PROBE
-#define HAS_TEMP_CHAMBER    HAS_TEMP_ADC_CHAMBER
+#if HAS_TEMP(BED)
+  #define HAS_TEMP_BED 1
+#endif
+#if HAS_TEMP(PROBE)
+  #define HAS_TEMP_PROBE 1
+#endif
+#if HAS_TEMP(CHAMBER)
+  #define HAS_TEMP_CHAMBER 1
+#endif
 
 #if ENABLED(JOYSTICK)
   #if PIN_EXISTS(JOY_X)