Convert some unsafe post-fork() LOG usage.

Using LOG() in the child process is not safe, because the parent may
have held a lock in bionic that will now never be unlocked in the child.

Use async_safe_format_log instead.

Bug: 182672944
Test: N/A
Change-Id: I419ad3a92c829e945acbfd73ebbc472a31de7080
3 files changed