crypto/evp/e_aes.c: fix logical pre-processor bug and formatting.

Bug would emerge when XTS is added to bsaes-armv7.pl. Pointed out by
Ard Biesheuvel of Linaro.

crypto/evp/e_aes.c

@@ -1260,7 +1260,10 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 			gctx->ctr = NULL;
 			break;
 			}
+		else
 #endif
+		(void)0;	/* terminate potentially open 'else' */
+
 		AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
 		CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)AES_encrypt);
 #ifdef AES_CTR_ASM
@@ -1653,14 +1656,17 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 			xctx->xts.block1 = (block128_f)vpaes_decrypt;
 			}
 
-		vpaes_set_encrypt_key(key + ctx->key_len/2,
+		    vpaes_set_encrypt_key(key + ctx->key_len/2,
 						ctx->key_len * 4, &xctx->ks2.ks);
-		xctx->xts.block2 = (block128_f)vpaes_encrypt;
+		    xctx->xts.block2 = (block128_f)vpaes_encrypt;
 
-		xctx->xts.key1 = &xctx->ks1;
-		break;
-		}
+		    xctx->xts.key1 = &xctx->ks1;
+		    break;
+		    }
+		else
 #endif
+		(void)0;	/* terminate potentially open 'else' */
+
 		if (enc)
 			{
 			AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);