In the future, Zircon's time types will change from unsigned to
signed. Use ZX_TIME_INFINITE instead of UINT64_MAX when
zx_nanosleep'ing.
See related Zircon bug ZX-2100.
Change-Id: I5eb139280c27ca817e1a489f04c860563c9b677c
Reviewed-on: https://chromium-review.googlesource.com/1123221
Commit-Queue: Nick Maniscalco <maniscalco@chromium.org>
Reviewed-by: Joshua Peraza <jperaza@chromium.org>