am 9573a13b: DO NOT MERGE: Switch fs_mgr to use SHA-256 instead of SHA-1

static int verify_table(char *signature, char *table, int table_length)

{

    RSAPublicKey *key;

    uint8_t hash_buf[SHA_DIGEST_SIZE];

    uint8_t hash_buf[SHA256_DIGEST_SIZE];

    int retval = -1;

    // Hash the table

    SHA_hash((uint8_t*)table, table_length, hash_buf);

    SHA256_hash((uint8_t*)table, table_length, hash_buf);

    // Now get the public key from the keyfile

    key = load_key(VERITY_TABLE_RSA_KEY);

                    (uint8_t*) signature,

                    RSANUMBYTES,

                    (uint8_t*) hash_buf,

                    SHA_DIGEST_SIZE)) {

                    SHA256_DIGEST_SIZE)) {

        ERROR("Couldn't verify table.");

        goto out;

    }