Merge "debuggerd: use One True timestamp function." am: ba1bd64ca2 am: 03773e8c42 am: 9ef81e44b0 am: 564dc584c3

Original change: https://android-review.googlesource.com/c/platform/system/core/+/1371520

Change-Id: Icfaeb466495929eef77631a7e9f3fcd96b584bfb