Default BuildBrokenDepfile to empty (false)

Test: The builds should still pass because all depfile is cleanup in
AOSP
Bug: 179452413

Change-Id: Ifb6f5320f72c3beb44ddd6654100645e0a62e659
diff --git a/core/soong_config.mk b/core/soong_config.mk
index 9b5cd1e..feffcc7 100644
--- a/core/soong_config.mk
+++ b/core/soong_config.mk
@@ -274,6 +274,7 @@
 
 $(call add_json_str,  ShippingApiLevel, $(PRODUCT_SHIPPING_API_LEVEL))
 
+$(call add_json_bool, BuildBrokenDepfile,                 $(filter true,$(BUILD_BROKEN_DEPFILE)))
 $(call add_json_bool, BuildBrokenEnforceSyspropOwner,     $(filter true,$(BUILD_BROKEN_ENFORCE_SYSPROP_OWNER)))
 $(call add_json_bool, BuildBrokenTrebleSyspropNeverallow, $(filter true,$(BUILD_BROKEN_TREBLE_SYSPROP_NEVERALLOW)))
 $(call add_json_bool, BuildBrokenVendorPropertyNamespace, $(filter true,$(BUILD_BROKEN_VENDOR_PROPERTY_NAMESPACE)))