Sort canned fs_config lines to facilitate comparison with Bazel-built APEXes

Bug: 237037156
Test: mixed builds regression testing
Change-Id: Ifc9a7b4231c947fe85e77c56ffeb30a2d53df6c4
diff --git a/apex/builder.go b/apex/builder.go
index 3b9cac0..18d0836 100644
--- a/apex/builder.go
+++ b/apex/builder.go
@@ -1133,7 +1133,7 @@
 	if a.properties.Canned_fs_config != nil {
 		cmd.Text("cat").Input(android.PathForModuleSrc(ctx, *a.properties.Canned_fs_config))
 	}
-	cmd.Text(")").FlagWithOutput("> ", cannedFsConfig)
+	cmd.Text(") | LC_ALL=C sort ").FlagWithOutput("> ", cannedFsConfig)
 	builder.Build("generateFsConfig", fmt.Sprintf("Generating canned fs config for %s", a.BaseModuleName()))
 
 	return cannedFsConfig.OutputPath