Fix autotest Makefile for vboot_reference.

Update list of scripts and test binaries - slightly more involved since the test runner scripts and the test binaries themselves reside in different directories.

BUG=none
TEST=manual (Ran make, went into the tests/ directory and ran the tests)

Change-Id: I97bd36d806726f6005e35490173cfcd0300add95

Review URL: http://codereview.chromium.org/3326014
2 files changed