metric-collector master: SRCREV bump b969299c2c..70be409c52

Willy Tu (5):
      boost: Remove soon to be deprecated features
      Fix association_interface dbus signals
      Fix Potential Bug in D-Bus Interface Lifecycle
      Remove ACC ping for LatencyInfo
      Reduce dbus calls to get RestartCount

Tested:
- platform11: http://fusion2/be540745-c5f3-3605-aee7-5cb57a97dcad
- platform11: http://fusion2/50541454-a6a6-3e81-abe7-a2a5890483e7
- platform5: http://fusion2/e48eeda8-856d-31bf-9ceb-d13aa7f20922
- platform15: http://fusion2/7685e31f-dce7-3f8e-9b50-e1e4db848c90
- platform17: http://fusion2/7b34632f-350c-3dba-ae74-04f16bb18020
- platform18: http://fusion2/bc909ce2-5863-3fc0-96de-99052bf2cb92
Google-Bug-Id: 420765573
Google-Bug-Id: 491570483
Platforms-Affected: TTF
Change-Id: I50523800e73bac58c2c29766da0564008d9c6d28
Signed-off-by: Willy Tu <wltu@google.com>
(cherry-picked from commit 7aec93b85b225e0d6785ca0e54f32babf6618b63)