Add an async version of powerHint called powerHintAsync.
Bug: 62377008
Test: Take systrace, confirm powerHint is now an async HIDL transaction
Change-Id: I7c4d850ef17c909977675771d6c2b8a3fa1609d2
Extend APIs to collect subsystem low power statistics.
Many subsystems (e.g.wifi) could be living on an
independent power island (sourced from VBatt directly)
and might even have their own dedicated XTAL to source
their clocks. Since these SOCs are capable of
autonomously operating (while the platform is in one
of the sleep states), they are still drawing power
from the VBatt. Hence it is critical to understand
the (SOC) level low power statistics as well when
the battery level changes and be able to find any
correlation in event of unexpected battery drain.
Bug: 29339696
Test: VTS
Change-Id: I1b6ea557dbdf1aa06e9560635fcba8d54afabda7
Signed-off-by: Ahmed ElArabawy <arabawy@google.com>
