Exempt UBSAN runtime library from soong_to_convert

Soong already uses it, just not as a prebuilt module.

Test: Compare soong_to_convert.txt before/after
Change-Id: I6ffa0d967635d52b7b4f8b2b0465cd50254f22b9
diff --git a/core/binary.mk b/core/binary.mk
index 44a84aa..8a238ba 100644
--- a/core/binary.mk
+++ b/core/binary.mk
@@ -1814,10 +1814,11 @@
     $(SOONG_CONV.$(LOCAL_MODULE).PROBLEMS) $(my_soong_problems)
 SOONG_CONV.$(LOCAL_MODULE).DEPS := \
     $(SOONG_CONV.$(LOCAL_MODULE).DEPS) \
-    $(my_static_libraries) \
-    $(my_whole_static_libraries) \
-    $(my_shared_libraries) \
-    $(my_system_shared_libraries)
+    $(filter-out $($(LOCAL_2ND_ARCH_VAR_PREFIX)UBSAN_RUNTIME_LIBRARY),\
+        $(my_static_libraries) \
+        $(my_whole_static_libraries) \
+        $(my_shared_libraries) \
+        $(my_system_shared_libraries))
 SOONG_CONV := $(SOONG_CONV) $(LOCAL_MODULE)
 endif