Set a dedicated variable for the runtime apex libs.

Bug: 124789867
Test: build with coverage, the boot classpath has jacoco.jar in /system/framework, not the apex
Change-Id: I2529f8fcb4ef30454a9e5fc95d58d31bef83ec6f
diff --git a/core/dex_preopt_config.mk b/core/dex_preopt_config.mk
index e3b720b..592e7fb 100644
--- a/core/dex_preopt_config.mk
+++ b/core/dex_preopt_config.mk
@@ -115,7 +115,7 @@
   $(call add_json_list, PatternsOnSystemOther,              $(SYSTEM_OTHER_ODEX_FILTER))
   $(call add_json_bool, DisableGenerateProfile,             $(filter false,$(WITH_DEX_PREOPT_GENERATE_PROFILE)))
   $(call add_json_list, BootJars,                           $(PRODUCT_BOOT_JARS))
-  $(call add_json_list, TargetCoreJars,                     $(TARGET_CORE_JARS))
+  $(call add_json_list, RuntimeApexJars,                    $(RUNTIME_APEX_JARS))
   $(call add_json_list, ProductUpdatableBootModules,        $(PRODUCT_UPDATABLE_BOOT_MODULES))
   $(call add_json_list, ProductUpdatableBootLocations,      $(PRODUCT_UPDATABLE_BOOT_LOCATIONS))
   $(call add_json_list, SystemServerJars,                   $(PRODUCT_SYSTEM_SERVER_JARS))