Shell unit tests were introduced under xCAT-test/autotest/bats, but the existing source-tree unit suite already lives directly under xCAT-test/unit. Keeping the BATS suite under xCAT-test/bats makes the unit-test layout consistent and keeps autotest reserved for xcattest-driven functional cases.
Signed-off-by: Daniel Hilst <392820+dhilst@users.noreply.github.com>