Use APIs stack/acl/btm_acl

acl_set_disconnect_reason
acl_get_supported_packet_types

Working towards encapsulation of tACL_CONN

Bug: 159815595
Tag: #refactor
Test: compile & verify basic functions working
Change-Id: I96b20d5fa9e08c9e468c305e5a827ce6f8462b7f