crypto: sun8i-ss - Move j init earlier in sun8i_ss_hash_run

With gcc-14 I get

../drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c: In function ‘sun8i_ss_hash_run’:
../drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c:631:21: warning: ‘j’ may be used uninitialized [-Wmaybe-uninitialized]
631 | j = hash_pad(bf, 4096, j, byte_count, true, bs);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c:493:13: note: ‘j’ was declared here
493 | int j, i, k, todo;
| ^

Fix this false positive by moving the initialisation of j earlier.

Signed-off-by: Herbert Xu <[e-mail]>

drivers/crypto/allwinner/sun8i-ss/sun8i-ss-hash.c

···
 
 	algt = container_of(alg, struct sun8i_ss_alg_template, alg.hash.base);
 	ss = algt->ss;
+	j = 0;
 
 	digestsize = crypto_ahash_digestsize(tfm);
 	if (digestsize == SHA224_DIGEST_SIZE)
···
 		goto err_dma_result;
 	}
 
-	j = 0;
 	len = areq->nbytes;
 	sg = areq->src;
 	i = 0;