[ORC-RT] Add target dependencies to ORC-RT regression tests.

check-orc-rt had no cmake target dependency on orc or llvm-jitlink, which
could lead to regression test failures in compiler-rt. This patch should
fix the issue.

Patch by Jack Andersen (jackoalan@gmail.com). Thanks Jack!

Reviewed By: lhames

Differential Revision: https://reviews.llvm.org/D110659