Build: Change TFM_TEST_REPO_PATH to CONFIG_TFM_TEST_DIR

The TFM_TEST_REPO_PATH is not really "test repo path".
And it's always used as "${TFM_TEST_REPO_PATH}/test".

This patch changes ${TFM_TEST_REPO_PATH}/test to CONFIG_TFM_TEST_DIR.

Change-Id: I60c9e8d2bb4cca4a81198044bf9d47b58532d310
Signed-off-by: Kevin Peng <kevin.peng@arm.com>
2 files changed