[automerger skipped] init: introduce ro.kernel.version property am: e69aea9256 -s ours

am skip reason: Merged-In Icec640b8a7150b344d9aa3bc0bdbcdae050c7c45 with SHA-1 1e966fa9f1 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/15994474

Change-Id: I7b4f9c60e9e8fc21266b8c2f64952740797cb72b