btm_sec: Fix crash caused by uncleared authentication collision info

Authentication collision info was not cleared correctly after
authentication failure, the remaining data may cause crash in
btm_sec_link_key_request() in furture.

Bug: 323960893
Bug: 327208896
Test: m com.android.btservices
Test: Manual | Simultaneously initiate classic Bluetooth pairing from
both the local and remote devices, decline the pairing request on the
local device, and then repeat the test.
Flag: clear_collision_state_on_pairing_complete
Change-Id: I93297db7b833430b165bd68c0319bd5e00e545fa