Platform: Remove TFM_PERIPH_ACCESS_TEST

Test_peripheral_access is going to be deprecated, remove
TFM_PERIPH_ACCESS_TEST related code in TF-M.

Change-Id: I15c26ddf5afacb8d46c929448c6a4718d1e04e7d
Signed-off-by: Shawn Shan <Shawn.Shan@arm.com>
15 files changed