Conditionally guard disable_observer_mode behind ESP_PLATFORM and CONFIG_USING_NIMBLE_COMPONENT

Author: stdstijn

src/NimBLEScan.cpp

@@ -39,8 +39,10 @@ NimBLEScan::NimBLEScan()
           .limited           = 0,                       // no limited scan
           .passive           = 1,                       // no scan response
           .filter_duplicates = 1,                       // filter duplicates
-# if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 4, 2)
-          .disable_observer_mode = 0, // observer role enabled
+# if defined(ESP_PLATFORM) && !defined(CONFIG_USING_NIMBLE_COMPONENT)
+#  if ESP_IDF_VERSION >= ESP_IDF_VERSION_VAL(5, 4, 2)
+          .disable_observer_mode = 0,
+#  endif
 # endif
       },
       m_pTaskData{nullptr},