Add vintf into GSI

Bug: 70248004
Test: build pass and check the file in system image
Change-Id: Id3a8dd20e3de5dbba9d6ec222b32fed8817d300b
diff --git a/target/product/treble_common.mk b/target/product/treble_common.mk
index d406d32..2377188 100644
--- a/target/product/treble_common.mk
+++ b/target/product/treble_common.mk
@@ -26,6 +26,10 @@
 # Split selinux policy
 PRODUCT_FULL_TREBLE_OVERRIDE := true
 
+# vintf utility:
+PRODUCT_PACKAGES += \
+    vintf
+
 # The Messaging app:
 #   Needed for android.telecom.cts.ExtendedInCallServiceTest#testOnCannedTextResponsesLoaded
 PRODUCT_PACKAGES += \