Merge "Revert "base: make boot_clock work on host linux, hide it on...
Merge "Revert "base: make boot_clock work on host linux, hide it on non-linux."" am: dd366705 am: 67cfaf4b am: afa0527f
am: 57b07480
Change-Id: I46d5c504ecf3518c718d82d03713febb5a7b3ef7