Add missing AZSMZ Mini SPI pins (#13824)

Marlin/src/pins/pins_AZSMZ_MINI.h

@@ -85,6 +85,9 @@
 #endif
 #define FAN1_PIN           P0_26
 
+#define LCD_SDSS           P0_16   // LCD SD chip select
+#define ONBOARD_SD_CS      P0_06   // On board SD chip select
+
 #if ENABLED(AZSMZ_12864)
   #define BEEPER_PIN       P1_30
   #define DOGLCD_A0        P2_06
@@ -92,8 +95,28 @@
   #define BTN_EN1          P4_28
   #define BTN_EN2          P1_27
   #define BTN_ENC          P3_26
-  #define LCD_SDSS         P0_16
+  #if DISABLED(LPC_SD_ONBOARD)
+    #define LPC_SD_LCD
+  #endif
+#endif
+
+#if ENABLED(LPC_SD_LCD)
+  #define SCK_PIN          P0_15
+  #define MISO_PIN         P0_17
+  #define MOSI_PIN         P0_18
+  #define SS_PIN           LCD_SDSS
   #define SD_DETECT_PIN    P3_25
+#elif ENABLED(LPC_SD_ONBOARD)
+  #if ENABLED(USB_SD_ONBOARD)
+    // When sharing the SD card with a PC we want the menu options to
+    // mount/unmount the card and refresh it. So we disable card detect.
+    #define SHARED_SD_CARD
+    #undef SD_DETECT_PIN
+  #endif
+  #define SCK_PIN          P0_07
+  #define MISO_PIN         P0_08
+  #define MOSI_PIN         P0_09
+  #define SS_PIN           ONBOARD_SD_CS
 #endif
 
 //