Test: Don't expect a particular error code in tfm_core_get_caller_client_id()

As the library mode memory check function can now return different error
codes, don't expect a particular error code when testing the negative
test case steps of tfm_core_get_caller_client_id(), but just keep it as
a generic check against the TFM_SUCCESS return code.

Signed-off-by: Antonio de Angelis <antonio.deangelis@arm.com>
Change-Id: Id370d941eb85855858934d16ce64d8f047f4891b
2 files changed