Hard dependencies are marked for static library targets, unlike
normal soft dependencies which the static libraries ignore. This
change ensures we run the commit_id script before compiling any
static libraries that depend on it.

Change-Id: Ic29652012883273810c2863132d6f49bd6ada4b8
Reviewed-on: https://chromium-review.googlesource.com/216461Tested-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Geoff Lang <geofflang@chromium.org>