* changes:
enum-ify stack/btm/btm_ble_int_types::tBTM_BLE_SEC_REQ_ACT
enumify tL2C_CB::tL2C_LCB::conn_update_mask
Remove unnecesary warning on expected parsing failure
Only read power mode on non-le links
Add helpers tL2C_CB::tL2C_LCB::tBT_TRANSPORT
Streamline stack/l2cap/l2c_link::l2c_link_check_power_mode
Internally link stack/l2cap/l2c_link::l2c_link_check_power_mode
Remove def stack/l2cap/l2c_link::L2C_LINK_CHECK_POWER_MODE
Slight cleanup stack/acl/btm_pm::BTM_SetSsrParams
Specialize data structures tBTM_PM_STATUS tBTM_PM_MODE