Add java sdk library enforcement flag

Add java sdk library enforcement for inter-partition library
dependency, for ensuring backward-compatible libraries for
inter-partition dependencies.

Test: m nothing
Bug: 168180538
Change-Id: I6bfac54c3499b03003a3bc6c2bb62b165b4ce5f9
diff --git a/android/variable.go b/android/variable.go
index a9a9c87..0df5272 100644
--- a/android/variable.go
+++ b/android/variable.go
@@ -347,6 +347,9 @@
 
 	EnforceProductPartitionInterface *bool `json:",omitempty"`
 
+	EnforceInterPartitionJavaSdkLibrary *bool    `json:",omitempty"`
+	InterPartitionJavaLibraryAllowList  []string `json:",omitempty"`
+
 	InstallExtraFlattenedApexes *bool `json:",omitempty"`
 
 	BoardUsesRecoveryAsBoot *bool `json:",omitempty"`