btaa: Add the method of onActivityLogsReady into btif interface

The method of onActivityLogsReady will be used to pass BT activity logs
to BTAA core module to JNI.

Tag: #feature

Bug: 183215497
Bug: 170315554

Test: m

Signed-off-by: Mingguang Xu <mingguangxu@google.com>
Change-Id: I4dfeece15cb04a1b01fd5ad59da3bbceccecbf91