ECDH: Make benchmarks check MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED
ECDH: Make benchmarks check MBEDTLS_ERR_PLATFORM_FEATURE_UNSUPPORTED

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