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

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

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I989b25bfadc7bdac6f4ca36d1902a0370d0c5b6f