xtensa: fix incorrect fd close in error case of simdisk_setup()

dev->fd is opened in attach operation, so should not
close dev->fd in error case of simdisk_setup().

Signed-off-by: Chengguang Xu <[e-mail]>
Message-Id: <[e-mail]>
Signed-off-by: Max Filippov <[e-mail]>

arch/xtensa/platforms/iss/simdisk.c

···
 	blk_cleanup_queue(dev->queue);
 	dev->queue = NULL;
 out_alloc_queue:
-	simc_close(dev->fd);
 	return -EIO;
 }