- Previously non-secure request at the 6th run expected to return status
"-135 (PSA_ERROR_INVALID_ARGUMENT)" which is the expected status so
updating "if" condition on the non-secure side handles this expected
type error status from the secure side.
- update sample YAML harness config regex of Digest message as this gets
compared at the run of twister.
- Update the readme console logs.
Signed-off-by: Rajkumar Kanagaraj <rajkumar.kanagaraj@linaro.org>