✨ ESP32 Panda_ZHU and Panda_M4 (#22644)

Marlin/src/HAL/TEENSY31_32/HAL_SPI.cpp

@@ -36,10 +36,9 @@ static SPISettings spiConfig;
 
 // Initialize SPI bus
 void spiBegin() {
-  #if !PIN_EXISTS(SD_SS)
-    #error "SD_SS_PIN not defined!"
+  #if PIN_EXISTS(SD_SS)
+    OUT_WRITE(SD_SS_PIN, HIGH);
   #endif
-  OUT_WRITE(SD_SS_PIN, HIGH);
   SET_OUTPUT(SD_SCK_PIN);
   SET_INPUT(SD_MISO_PIN);
   SET_OUTPUT(SD_MOSI_PIN);