btaa: handle wakeup notification

Compare the wakeup reason to verify if Bluetooth was the wakeup source
and record the wakeup event for future processing.

Tag: #feature
Bug: 177228387
Test: verified locally BTAA module receives and parses Bluetooth wakeup
reasons.
BYPASS_LONG_LINES_REASON: consist with gd format

Change-Id: I301d2a372ddaebdf0818e368019cb8043c2034c5