Merge "[libnblog] Use new jsoncpp API" am: 96de95d911 am: 3a55dfac87

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1606999

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ibbb3a1335d65abb75ff3e52b2ce587c63a4bd423