Add symbols.zip and build.prop to sdk dist.

Change-Id: I667f5ef847a6e8e78c6b3df5c2b092bb5d863955
http://b/issue?id=2394164
diff --git a/core/Makefile b/core/Makefile
index fa62c25..0823995 100644
--- a/core/Makefile
+++ b/core/Makefile
@@ -1195,10 +1195,12 @@
 	$(target_notice_file_txt) \
 	$(tools_notice_file_txt) \
 	$(OUT_DOCS)/offline-sdk-timestamp \
+	$(SYMBOLS_ZIP) \
 	$(INSTALLED_SYSTEMIMAGE) \
 	$(INSTALLED_USERDATAIMAGE_TARGET) \
 	$(INSTALLED_RAMDISK_TARGET) \
 	$(INSTALLED_SDK_BUILD_PROP_TARGET) \
+	$(INSTALLED_BUILD_PROP_TARGET) \
 	$(ATREE_FILES) \
 	$(atree_dir)/sdk.atree \
 	$(HOST_OUT_EXECUTABLES)/atree \