Add stack/include/btm_status helpers am: 4c433352 am: b78e6104 am: 2fa2cb24

  BTM_REPEATED_ATTEMPTS,   /* 19 repeated attempts for LE security requests */

  BTM_MODE4_LEVEL4_NOT_SUPPORTED, /* 20 Secure Connections Only Mode can't be

                                     supported */

  BTM_DEV_RESTRICT_LISTED         /* 21 The device is restrict listed */

  BTM_DEV_RESTRICT_LISTED,        /* 21 The device is restrict listed */

  BTM_MAX_STATUS_VALUE = BTM_DEV_RESTRICT_LISTED,

  BTM_UNDEFINED = 0xFF,

};

typedef uint8_t tBTM_STATUS;

inline std::string btm_status_text(tBTM_STATUS status) {

inline uint8_t btm_status_value(const tBTM_STATUS& status) {

  return static_cast<uint8_t>(status);

}

inline tBTM_STATUS to_btm_status(const uint8_t& value) {

  if (value > BTM_MAX_STATUS_VALUE) return BTM_UNDEFINED;

  return static_cast<tBTM_STATUS>(value);

}

inline std::string btm_status_text(const tBTM_STATUS& status) {

  switch (status) {

    case BTM_SUCCESS:

      return std::string("success");