Fix boot freeze when trying to init PSRAM on Pico D4 (espressif#6434)

* Fix boot freeze when trying to init PSRAM on Pico D4

* Don't deconfigure GPIO16/17 in Pico D4

Author: s-hadinger

Diff for: cores/esp32/esp32-hal-psram.c

@@ -67,8 +67,10 @@ bool psramInit(){
         spiramFailed = true;
         log_w("PSRAM init failed!");
 #if CONFIG_IDF_TARGET_ESP32
-        pinMatrixOutDetach(16, false, false);
-        pinMatrixOutDetach(17, false, false);
+        if (pkg_ver != EFUSE_RD_CHIP_VER_PKG_ESP32PICOD4) {
+            pinMatrixOutDetach(16, false, false);
+            pinMatrixOutDetach(17, false, false);
+        }
 #endif
         return false;
     }