AAPT2: fixing the -c flag being ignored

Bug: 36999175
Test: manual

Change-Id: Id9a4a00a3b37bc088d86df7c75bbe711536b980f
diff --git a/tools/aapt2/link/Link.cpp b/tools/aapt2/link/Link.cpp
index a33fd06..407eb52 100644
--- a/tools/aapt2/link/Link.cpp
+++ b/tools/aapt2/link/Link.cpp
@@ -2151,7 +2151,7 @@
   }
 
   AxisConfigFilter filter;
-  if (configs.empty()) {
+  if (!configs.empty()) {
     for (const std::string& config_arg : configs) {
       for (const StringPiece& config_str : util::Tokenize(config_arg, ',')) {
         ConfigDescription config;