Add support for preopted app images

Enable iff WITH_DEXPREOPT_APP_IMAGE is true.

Test: Clean + build with the flag on and off. Tested Sailfish
booting.

Bug: 34927277

Change-Id: I9b74d1a5fc554803fddb29b6cb30a0f6efd80f8e
diff --git a/core/dex_preopt_libart.mk b/core/dex_preopt_libart.mk
index 3cff9c8..41e5e87 100644
--- a/core/dex_preopt_libart.mk
+++ b/core/dex_preopt_libart.mk
@@ -124,5 +124,6 @@
 	--abort-on-hard-verifier-error \
 	--no-inline-from=core-oj.jar \
 	$(PRIVATE_DEX_PREOPT_FLAGS) \
+	$(PRIVATE_ART_FILE_PREOPT_FLAGS) \
 	$(GLOBAL_DEXPREOPT_FLAGS)
 endef