store supported versions of blockimgdiff in misc_info

Change-Id: Idfbcf4b4435e1300a6dde52dd6cb675f0d85ca79
diff --git a/core/Makefile b/core/Makefile
index b2f3d39..5bbc2e3 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1425,6 +1425,7 @@
 	$(hide) echo "use_set_metadata=1" >> $(zip_root)/META/misc_info.txt
 	$(hide) echo "multistage_support=1" >> $(zip_root)/META/misc_info.txt
 	$(hide) echo "update_rename_support=1" >> $(zip_root)/META/misc_info.txt
+	$(hide) echo "blockimgdiff_versions=1,2" >> $(zip_root)/META/misc_info.txt
 ifneq ($(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_OEM_PROPERTIES),)
 	# OTA scripts are only interested in fingerprint related properties
 	$(hide) echo "oem_fingerprint_properties=$(filter ro.product.brand ro.product.name ro.product.device, $(PRODUCTS.$(INTERNAL_PRODUCT).PRODUCT_OEM_PROPERTIES))" >> $(zip_root)/META/misc_info.txt