btaa: attribute wakeup and wakelock duration over processed HCI buckets

Attach recorded BT wakeup to the first post-wakeup parsed HCI packet.
Distribute wakelock duration over bucketed HCI info based on
transmitted byte counts.

Tag: #feature
Bug: 177232907
BUG: 177228387
Test: verified locally BTAA aggregator updated with BT activities
BYPASS_LONG_LINES_REASON: consist with gd format

Change-Id: Idf93afcf13af9e76b4bc6f6ef30cf8424d8b4982