ble_mesh: Do not #define bool when compiling in C++

components/bt/esp_ble_mesh/mesh_common/include/mesh_types.h

@@ -28,6 +28,7 @@ typedef unsigned long long  u64_t;
 
 typedef int         bt_mesh_atomic_t;
 
+#ifndef __cplusplus
 #ifndef bool
 #define bool        int8_t
 #endif
@@ -39,6 +40,7 @@ typedef int         bt_mesh_atomic_t;
 #ifndef true
 #define true        1
 #endif
+#endif
 
 #ifndef PRIu64
 #define PRIu64      "llu"