Relink update_engine_sideload

Change-Id: Ifb95d94a5804f0d490bc8c2c19cab7b03c8f1432
diff --git a/prebuilt/Android.mk b/prebuilt/Android.mk
index cd806a8..cfcdae1 100755
--- a/prebuilt/Android.mk
+++ b/prebuilt/Android.mk
@@ -312,6 +312,7 @@
     endif
 endif
 ifeq ($(AB_OTA_UPDATER), true)
+    RELINK_SOURCE_FILES += $(TARGET_RECOVERY_ROOT_OUT)/system/bin/update_engine_sideload
     RELINK_SOURCE_FILES += $(TARGET_OUT_SHARED_LIBRARIES)/android.hardware.boot@1.0.so
     RELINK_SOURCE_FILES += $(TARGET_OUT_EXECUTABLES)/bootctl
     ifneq ($(TW_INCLUDE_CRYPTO), true)