Rename hidden API types ..Augmentation.. to ..FlagFile..

Augmentation was too abstract this makes it clearer.

Bug: 177892522
Test: m nothinge
Change-Id: I60ad005e68d9e15b01bcb46bc6a9b7f84d8bfd43
diff --git a/java/platform_bootclasspath.go b/java/platform_bootclasspath.go
index 994f1be..cb428fa 100644
--- a/java/platform_bootclasspath.go
+++ b/java/platform_bootclasspath.go
@@ -99,7 +99,7 @@
 	// platform_bootclasspath.
 	Fragments []ApexVariantReference
 
-	Hidden_api HiddenAPIAugmentationProperties
+	Hidden_api HiddenAPIFlagFileProperties
 }
 
 func platformBootclasspathFactory() android.Module {
@@ -334,7 +334,7 @@
 		moduleSpecificFlagsPaths = append(moduleSpecificFlagsPaths, module.flagsCSV())
 	}
 
-	augmentationInfo := b.properties.Hidden_api.hiddenAPIAugmentationInfo(ctx)
+	augmentationInfo := b.properties.Hidden_api.hiddenAPIFlagFileInfo(ctx)
 
 	outputPath := hiddenAPISingletonPaths(ctx).flags
 	baseFlagsPath := hiddenAPISingletonPaths(ctx).stubFlags