cppcheck cmdhfmfhard.c redundant assignment

[doegox]

In cmdhfmfhard.c

        if (!initialize) {
            uint16_t num_sampled_nonces = resp.oldarg[2];
            uint8_t *bufp = resp.data.asBytes;
            for (uint16_t i = 0; i < num_sampled_nonces; i += 2) {

Indeed resp is declared but not initialized. Even memsetting it doesn't fix the logic as we're looping on it. I don't know what should be the logic here...

[iceman1001]

:) can we make a NULL check for it?

Ps. @pwpiwi would be better at it