Skip some psk cases cause wrong fallback to ephemeral
Skip some psk cases cause wrong fallback to ephemeral

Signed-off-by: Xiaokang Qian <7b6134ba682adad72773df97eb8737186a67b798@arm.com>

ARMmbed/mbedtls,Mbed-TLS/mbedtls,ARMmbed/mbedtls,ARMmbed/mbedtls,Mbed-TLS/mbedtls,Mbed-TLS/mbedtls,Mbed-TLS/mbedtls,ARMmbed/mbedtls