Correctly set up build variables for the correct pic mode for fake_bi…

…nary

rules.

--
MOS_MIGRATED_REVID=119737046

src/main/java/com/google/devtools/build/lib/rules/cpp/CppModel.java

@@ -569,7 +569,7 @@ private void createFakeSourceAction(PathFragment outputName, CcCompilationOutput
         .setOutputFile(outputFile)
         .setDotdFile(outputName, dependencyFileExtension)
         .setTempOutputFile(tempOutputName);
-    setupBuildVariables(builder, getGeneratePicActions(), ccRelativeName, execPath, null);
+    setupBuildVariables(builder, usePic, ccRelativeName, execPath, null);
     semantics.finalizeCompileActionBuilder(ruleContext, builder);
     CppCompileAction action = builder.build();
     env.registerAction(action);