Add support for RAK WISMESH TAP V2 by enabling SDCARD_CS pin during deep sleep (#8429)

Author: DanielCao0

src/sleep.cpp

@@ -244,6 +244,10 @@ void doDeepSleep(uint32_t msecToWake, bool skipPreflight = false, bool skipSaveN
     // pinMode(PIN_POWER_EN1, INPUT_PULLDOWN);
 #endif
 
+#ifdef RAK_WISMESH_TAP_V2
+    digitalWrite(SDCARD_CS, LOW);
+#endif
+
 #ifdef TRACKER_T1000_E
 #ifdef GNSS_AIROHA
     digitalWrite(GPS_VRTC_EN, LOW);