Merge branch 'bugfix/btdm_ble_update_conn_params_issues' into 'master'

component/bt: Modifed the update connection method to fixed the bug of connectio…

See merge request !889

diff --cc components/bt/bluedroid/include/bt_target.h
Simple merge

diff --cc components/bt/bluedroid/stack/l2cap/l2c_ble.c
Simple merge

diff --cc examples/bluetooth/gatt_server/main/gatts_demo.c
Simple merge