Send CLCC responses when clcc end mark arrived

If a HFP connection is made in the middle of CLSS responses, the
newly connected HF can't get the full CLCC responses. This CL saves
CLCC responses and send them together to the connected devices when
a CLCC end mark is sent.

Bug: 215674669
Tag: #refactor
Test: atest CtsBluetoothTestCases bluetooth_test_gd_unit
Change-Id: I271e87082a26373a210a4aaefdadb4390d562704