Include charger.recovery for recovery.

It used to be installed to recovery with the rsync from normal root to
recovery root.

Bug: 114042635
Test: `m -j bootimage` with aosp_walleye-userdebug.
Change-Id: If3451f21018f271b1df83a31d4ece382e0dfebb9
diff --git a/target/product/base_vendor.mk b/target/product/base_vendor.mk
index 8574aff..6ea7292 100644
--- a/target/product/base_vendor.mk
+++ b/target/product/base_vendor.mk
@@ -19,6 +19,7 @@
     adbd.recovery \
     android.hardware.health@2.0-impl-default.recovery \
     cgroups.recovery.json \
+    charger.recovery \
     init_second_stage.recovery \
     ld.config.recovery.txt \
     linker.recovery \