Add support for SOLENOID_PROBE

Marlin/SanityCheck.h

@@ -172,6 +172,8 @@
   #error "EXTRUDER_[0123]_AUTO_FAN_PIN is now E[0123]_AUTO_FAN_PIN. Please update your Configuration_adv.h."
 #elif defined(min_software_endstops) || defined(max_software_endstops)
   #error "(min|max)_software_endstops are now (MIN|MAX)_SOFTWARE_ENDSTOPS. Please update your configuration."
+#elif ENABLED(Z_PROBE_SLED) && defined(SLED_PIN)
+  #error "Replace SLED_PIN with SOL1_PIN (applies to both Z_PROBE_SLED and SOLENOID_PROBE)."
 #endif
 
 /**
@@ -459,6 +461,9 @@ static_assert(1 >= 0
   #if ENABLED(Z_PROBE_SLED)
     + 1
   #endif
+  #if ENABLED(SOLENOID_PROBE)
+    + 1
+  #endif
   , "Please enable only one probe: PROBE_MANUALLY, FIX_MOUNTED_PROBE, Z Servo, BLTOUCH, Z_PROBE_ALLEN_KEY, or Z_PROBE_SLED."
 );
 
@@ -472,6 +477,17 @@ static_assert(1 >= 0
     #error "You cannot use Z_PROBE_SLED with DELTA."
   #endif
 
+  /**
+   * SOLENOID_PROBE requirements
+   */
+  #if ENABLED(SOLENOID_PROBE)
+    #if ENABLED(EXT_SOLENOID)
+      #error "SOLENOID_PROBE is incompatible with EXT_SOLENOID."
+    #elif !HAS_SOLENOID_1
+      #error "SOLENOID_PROBE requires SOL1_PIN. It can be added to your Configuration.h."
+    #endif
+  #endif
+
   /**
    * NUM_SERVOS is required for a Z servo probe
    */