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: Ia3fdb8f38e83ad8225a72c8de2804db23a90ef9b
diff --git a/cc/sanitize.go b/cc/sanitize.go
index 090d490..0f1aea2 100644
--- a/cc/sanitize.go
+++ b/cc/sanitize.go
@@ -421,7 +421,7 @@
 
 		// When linking against VNDK, use the vendor variant of the runtime lib
 		sanitize.androidMkRuntimeLibrary = sanitize.runtimeLibrary
-		if ctx.vndk() {
+		if ctx.useVndk() {
 			sanitize.androidMkRuntimeLibrary = sanitize.runtimeLibrary + vendorSuffix
 		}
 	}