Add on-device signing binary to base.

Bug: 165630556
Test: inspect image
Change-Id: Ia428165be4a9800df23918330ab027458c84836d
diff --git a/target/product/base_system.mk b/target/product/base_system.mk
index 1b4c8d9..b110be5 100644
--- a/target/product/base_system.mk
+++ b/target/product/base_system.mk
@@ -214,6 +214,7 @@
     ndc \
     netd \
     NetworkStackNext \
+    odsign \
     org.apache.http.legacy \
     otacerts \
     PackageInstaller \