Set ESP-IDF to 3.2 (#2662)

* Set IDF to v3.2

* Remove BLE submodule

* Add BLE lib source

* Update Camera example to support OV3660

tools/sdk/include/nvs_flash/nvs.h

@@ -65,20 +65,6 @@ typedef enum {
 	NVS_READWRITE  /*!< Read and write */
 } nvs_open_mode;
 
-typedef enum {
-    NVS_TYPE_U8    = 0x01,
-    NVS_TYPE_I8    = 0x11,
-    NVS_TYPE_U16   = 0x02,
-    NVS_TYPE_I16   = 0x12,
-    NVS_TYPE_U32   = 0x04,
-    NVS_TYPE_I32   = 0x14,
-    NVS_TYPE_U64   = 0x08,
-    NVS_TYPE_I64   = 0x18,
-    NVS_TYPE_STR   = 0x21,
-    NVS_TYPE_BLOB  = 0x42,
-    NVS_TYPE_ANY   = 0xff // Must be last
-} nvs_type_t;
-
 /**
  * @brief      Open non-volatile storage with a given namespace from the default NVS partition
  *