Add PHONY for apex-allowed-deps check.

Bug: 149622332
Test: m apex-allowed-deps-check
Change-Id: I5848779b4ad04dd4c95e2667f7f62dd2949ac95e
Merged-In: I5848779b4ad04dd4c95e2667f7f62dd2949ac95e
(cherry picked from commit 01aa11e833807ef55ab5b2322b6538cb3da2e0a4)
diff --git a/apex/apex_singleton.go b/apex/apex_singleton.go
index 803e0c5..ee9fc81 100644
--- a/apex/apex_singleton.go
+++ b/apex/apex_singleton.go
@@ -100,6 +100,8 @@
 			"new_allowed_deps": newAllowedDeps.String(),
 		},
 	})
+
+	ctx.Phony("apex-allowed-deps-check", s.allowedApexDepsInfoCheckResult)
 }
 
 func (s *apexDepsInfoSingleton) MakeVars(ctx android.MakeVarsContext) {