Copy vendor_ramdisk[-debug].img to out/dist

Test: make
Change-Id: Ibac6424f600b77d222585c17a91d59fb6985df26
diff --git a/core/main.mk b/core/main.mk
index d84e43e..63fac43 100644
--- a/core/main.mk
+++ b/core/main.mk
@@ -1744,6 +1744,8 @@
       $(INSTALLED_DEBUG_RAMDISK_TARGET) \
       $(INSTALLED_DEBUG_BOOTIMAGE_TARGET) \
       $(INSTALLED_VENDOR_DEBUG_BOOTIMAGE_TARGET) \
+      $(INSTALLED_VENDOR_RAMDISK_TARGET) \
+      $(INSTALLED_VENDOR_DEBUG_RAMDISK_TARGET) \
     )
     $(call dist-for-goals, bootimage_test_harness, \
       $(INSTALLED_TEST_HARNESS_RAMDISK_TARGET) \