atapi: Fix code indentation

This was accidentally changed by commit 5f81724d

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 93fb43522e3b8dddb6c709d568919347d9a5ba3f.1448367341.git.berto@igalia.com
Signed-off-by: John Snow <jsnow@redhat.com>

hw/ide/atapi.c

@@ -443,7 +443,7 @@ eot:
     if (ret < 0) {
         block_acct_failed(blk_get_stats(s->blk), &s->acct);
     } else {
-    block_acct_done(blk_get_stats(s->blk), &s->acct);
+        block_acct_done(blk_get_stats(s->blk), &s->acct);
     }
     ide_set_inactive(s, false);
 }