Introduce a target version of jarjar'ed icu4j-icudata.

This is needed by robolectric_android-all-stub, which
currently uses icu4j-icudata and then runs jarjar.

Bug: 72703434
Test: Treehugger

Change-Id: I3f53e1f985ff79f270943be801a20b72d52ffa16
diff --git a/icu4j/Android.mk b/icu4j/Android.mk
index 7ce36e0..8a664bd 100644
--- a/icu4j/Android.mk
+++ b/icu4j/Android.mk
@@ -139,6 +139,12 @@
 include $(BUILD_HOST_JAVA_LIBRARY)
 
 include $(CLEAR_VARS)
+LOCAL_STATIC_JAVA_LIBRARIES := icu4j-icudata
+LOCAL_JARJAR_RULES := $(LOCAL_PATH)/liblayout-jarjar-rules.txt
+LOCAL_MODULE := icu4j-icudata-jarjar
+include $(BUILD_STATIC_JAVA_LIBRARY)
+
+include $(CLEAR_VARS)
 LOCAL_STATIC_JAVA_LIBRARIES := icu4j-icutzdata-host
 LOCAL_JARJAR_RULES := $(LOCAL_PATH)/liblayout-jarjar-rules.txt
 LOCAL_MODULE := icu4j-icutzdata-host-jarjar