chromeos-initramfs: update path to udevadm

Newer udevs install into the /bin/ subdir.

BUG=chromium:680849
TEST=precq passes

Change-Id: I8baa0a9c547dde4bf7cd1ad6c38e23ded9f5ec75
Reviewed-on: https://chromium-review.googlesource.com/427900
Reviewed-by: Luigi Semenzato <semenzato@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
1 file changed