sync: Use correct type in size calculation

The previous and current types are the same size, so this wouldn't
have caused a bug in practice, but it is confusing, and would have
been a problem in the unlikely event we changed the size of one of the
types.

Test: sync-unit-tests on bullhead
Change-Id: Ic43b81f3b4ff214af86b6b6d4d02c648f95d0c4b
diff --git a/libsync/sync.c b/libsync/sync.c
index 9ed03db..0e9ad43 100644
--- a/libsync/sync.c
+++ b/libsync/sync.c
@@ -145,7 +145,7 @@
     }
 
     legacy_info->len = sizeof(*legacy_info) +
-                        num_fences * sizeof(struct sync_fence_info);
+                        num_fences * sizeof(struct sync_pt_info);
     strlcpy(legacy_info->name, info->name, sizeof(legacy_info->name));
     legacy_info->status = info->status;