rc: Update dependencies for zpool scripts

After commit 900bc0206348, zpool depends on mountcritlocal. zpoolreguid
and zpoolupgrade depend on zpool and want to run before mountcritcycle,
so we have a pair of cycles.

Update zpoolreguid and zpoolupgrade to avoid this.

Reviewed by: des
MFC after: 3 days
Fixes: 900bc0206348 ("rc.d/zpool: change mountcritlocal dep from BEFORE to REQUIRE")
Differential Revision: https://reviews.freebsd.org/D52953

(cherry picked from commit ae6db60ff56de5b93de9f6fee6116cbc2d4b498e)