Fix inheritance order

The children to inherit from were not sorted. This
wasn't a problem for list variables, because all those
inheritances get merged together based on the @inherit/
values in the list variables. But for single value variables
it made a difference.

Bug: 226206409
Test: ./out/rbcrun ./build/make/tests/run.rbc
Change-Id: Ib56bbb91a79fe8c7cb780c253f5bd8d6c0e87765
diff --git a/tests/single_value_inheritance/product.rbc b/tests/single_value_inheritance/product.rbc
index 3327043..d090af6 100644
--- a/tests/single_value_inheritance/product.rbc
+++ b/tests/single_value_inheritance/product.rbc
@@ -18,7 +18,7 @@
 
 def init(g, handle):
   cfg = rblf.cfg(handle)
-  rblf.inherit(handle, "test/inherit1", _inherit1_init)
   rblf.inherit(handle, "test/inherit2", _inherit2_init)
+  rblf.inherit(handle, "test/inherit1", _inherit1_init)
 
   cfg["PRODUCT_DEFAULT_DEV_CERTIFICATE"] = ""