Some clarifications in preparation to automatically order linker dependencies

Test: Browse the code and determine whether it's easier to understand
Bug: 66260943
Change-Id: I88c24a8a31ef68f428919087d206433659265684
diff --git a/cc/sabi.go b/cc/sabi.go
index e45b040..8086f5b 100644
--- a/cc/sabi.go
+++ b/cc/sabi.go
@@ -79,7 +79,7 @@
 
 func sabiDepsMutator(mctx android.TopDownMutatorContext) {
 	if c, ok := mctx.Module().(*Module); ok &&
-		((c.isVndk() && c.vndk()) || inList(c.Name(), llndkLibraries) ||
+		((c.isVndk() && c.useVndk()) || inList(c.Name(), llndkLibraries) ||
 			(c.sabi != nil && c.sabi.Properties.CreateSAbiDumps)) {
 		mctx.VisitDirectDeps(func(m blueprint.Module) {
 			tag := mctx.OtherModuleDependencyTag(m)