Fix droiddoc variable name in clear_vars.mk

Test: m -j
Bug: b/70351683
Change-Id: I8cb4429a7e6bebde541a09f0328dddb937c0aced
diff --git a/core/clear_vars.mk b/core/clear_vars.mk
index 3bec869..fc6b83c 100644
--- a/core/clear_vars.mk
+++ b/core/clear_vars.mk
@@ -241,7 +241,7 @@
 LOCAL_SOONG_PROGUARD_DICT :=
 LOCAL_SOONG_RESOURCE_EXPORT_PACKAGE :=
 LOCAL_SOONG_RRO_DIRS :=
-LOCAL_DROIDDOC_STUBS_JAR :=
+LOCAL_DROIDDOC_STUBS_SRCJAR :=
 LOCAL_DROIDDOC_DOC_ZIP :=
 # '',true
 LOCAL_SOURCE_FILES_ALL_GENERATED:=