feat(bt): support Set_Min_Key_Size HCI for esp32s31

components/bt/include/common/btdm_bredr_vs.h

@@ -21,6 +21,19 @@ extern "C" {
 //       Application developers **should not** call the init functions in their applications.
 //
 
+/**
+ * @brief Set Classic Bluetooth minimum encryption key size (OCF: 0x0182)
+ *
+ * @note The init function is `bt_stack_enableSecCtrlVsCmd(true)`
+ */
+#define ESP_BT_VS_SET_MIN_ENC_KEY_SIZE_OCF                          (0x0182)
+/**
+* @brief Set bt minimum encryption key size cmd parameters
+*/
+struct bt_hci_vs_set_min_enc_key_size {
+    uint8_t size; /*!< the minimum encryption key size */
+};
+
 /**
 * @brief This event indicates legacy authentication is completed by remote device (EVTCODE: 0xFF, SUBCODE: 0x03)
 *