🐛 Fix MMU2 buzz (#23943)

Followup to 89a9c3a391

Marlin/src/feature/mmu/mmu2.cpp

   #define FILAMENT_PRESENT() (READ(FIL_RUNOUT1_PIN) != FIL_RUNOUT1_STATE)
 #endif
 
-inline void ATTN_BUZZ(const bool two=false) { BUZZ(200, 404); if (two) { BUZZ(10, 0); BUZZ(200, 404); } }
+void mmu2_attn_buzz(const bool two=false) {
+  BUZZ(200, 404);
+  if (two) { BUZZ(10, 0); BUZZ(200, 404); }
+}
 
 void MMU2::mmu_loop() {
 
       }
 
       LCD_MESSAGE(MSG_MMU2_RESUMING);
-      ATTN_BUZZ(true);
+      mmu2_attn_buzz(true);
 
       #pragma GCC diagnostic push
       #pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
 
   command(MMU_CMD_L0 + index);
   manage_response(false, false);
-  ATTN_BUZZ();
+  mmu2_attn_buzz();
 }
 
 /**
   if (!_enabled) return false;
 
   if (thermalManager.tooColdToExtrude(active_extruder)) {
-    ATTN_BUZZ();
+    mmu2_attn_buzz();
     LCD_ALERTMESSAGE(MSG_HOTEND_TOO_COLD);
     return false;
   }
     extruder = index;
     active_extruder = 0;
     load_to_nozzle();
-    ATTN_BUZZ();
+    mmu2_attn_buzz();
   }
   return success;
 }
   if (!_enabled) return false;
 
   if (thermalManager.tooColdToExtrude(active_extruder)) {
-    ATTN_BUZZ();
+    mmu2_attn_buzz();
     LCD_ALERTMESSAGE(MSG_HOTEND_TOO_COLD);
     return false;
   }
 
   if (recover)  {
     LCD_MESSAGE(MSG_MMU2_EJECT_RECOVER);
-    ATTN_BUZZ();
+    mmu2_attn_buzz();
     TERN_(HOST_PROMPT_SUPPORT, hostui.prompt_do(PROMPT_USER_CONTINUE, F("MMU2 Eject Recover"), FPSTR(CONTINUE_STR)));
     TERN_(EXTENSIBLE_UI, ExtUI::onUserConfirmRequired(F("MMU2 Eject Recover")));
     TERN_(HAS_RESUME_CONTINUE, wait_for_user_response());
-    ATTN_BUZZ(true);
+    mmu2_attn_buzz(true);
 
     command(MMU_CMD_R0);
     manage_response(false, false);
 
   set_runout_valid(false);
 
-  ATTN_BUZZ();
+  mmu2_attn_buzz();
 
   stepper.disable_extruder();
 
   if (!_enabled) return false;
 
   if (thermalManager.tooColdToExtrude(active_extruder)) {
-    ATTN_BUZZ();
+    mmu2_attn_buzz();
     LCD_ALERTMESSAGE(MSG_HOTEND_TOO_COLD);
     return false;
   }
   command(MMU_CMD_U0);
   manage_response(false, true);
 
-  ATTN_BUZZ();
+  mmu2_attn_buzz();
 
   // no active tool
   extruder = MMU2_NO_TOOL;