Detect if WOLFSSL_MAX_ERROR_SZ is too small

[gojimmypi]

Description

Adds a wolfSSL debug message when WOLFSSL_MAX_ERROR_SZ is too small. The string comparison will otherwise fail:

        errStr = wc_GetErrorString(i);
        wc_ErrorString(i, out);
        if (XSTRCMP(errStr, out) != 0) {
            WOLFSSL_MSG("errStr does not match output");
            return WC_TEST_RET_ENC_I(-i);
        }

As the root cause is not immediately intuitive, this message may help. Perhaps a hard compile-time error instead?

See fixed length strings returned in wc_GetErrorString().

Fixes zd# n/a

Testing

How did you test?

Minimal testing on embedded device.

Checklist

• added tests
• updated/added doxygen
• updated appropriate READMEs
• Updated manual and documentation

[gojimmypi]

Jenkins retest this please

For java.io.IOException: Unexpected EOF Remote call to wolf-linux-cloud-node-[n]

[dgarske]

Jenkins retest this please. FIPS v2 apt issue still