Set TARGET_VNDK_USE_CORE_VARIANT for Go devices

Bug: 119423884
Test: Build a Go device, boot, and check ld.config.txt.
Change-Id: Id996b7b77991ee3db184c780f5822f231426f508
diff --git a/target/product/go_defaults_common.mk b/target/product/go_defaults_common.mk
index aee7f47..7b9c783 100644
--- a/target/product/go_defaults_common.mk
+++ b/target/product/go_defaults_common.mk
@@ -57,3 +57,6 @@
 # use the go specific handheld_core_hardware.xml from frameworks
 PRODUCT_COPY_FILES += \
     frameworks/native/data/etc/go_handheld_core_hardware.xml:$(TARGET_COPY_OUT_VENDOR)/etc/permissions/handheld_core_hardware.xml
+
+# Dedupe VNDK libraries with identical core variants.
+TARGET_VNDK_USE_CORE_VARIANT := true