✨ BLTouch High Speed mode runtime configuration (#22916, #23337)

Co-Authored-By: Scott Lahteine <thinkyhead@users.noreply.github.com>

Marlin/src/gcode/calibrate/G34_M422.cpp

@@ -45,6 +45,10 @@
   #include "../../libs/least_squares_fit.h"
 #endif
 
+#if ENABLED(BLTOUCH)
+  #include "../../feature/bltouch.h"
+#endif
+
 #define DEBUG_OUT ENABLED(DEBUG_LEVELING_FEATURE)
 #include "../../core/debug_out.h"
 
@@ -149,7 +153,7 @@ void GcodeSuite::G34() {
       // In BLTOUCH HS mode, the probe travels in a deployed state.
       // Users of G34 might have a badly misaligned bed, so raise Z by the
       // length of the deployed pin (BLTOUCH stroke < 7mm)
-      #define Z_BASIC_CLEARANCE (Z_CLEARANCE_BETWEEN_PROBES + 7.0f * BOTH(BLTOUCH, BLTOUCH_HS_MODE))
+      #define Z_BASIC_CLEARANCE (Z_CLEARANCE_BETWEEN_PROBES + TERN0(BLTOUCH, bltouch.z_extra_clearance()))
 
       // Compute a worst-case clearance height to probe from. After the first
       // iteration this will be re-calculated based on the actual bed position