Adding GSI keys

Bug:112293933
Test: tree hugger
Change-Id: I112ece91566e6cea066cd637bfed5cae6761ae66
diff --git a/device.mk b/device.mk
index 6763944..06e9f6f 100755
--- a/device.mk
+++ b/device.mk
@@ -14,6 +14,9 @@
 # limitations under the License.
 #
 
+# Installs gsi keys into ramdisk, to boot a GSI with verified boot.
+$(call inherit-product, $(SRC_TARGET_DIR)/product/gsi_keys.mk)
+
 ifneq (,$(filter 27, $(PRODUCT_EXTRA_VNDK_VERSIONS)))
     _vndk_test := true
 endif