sign_official_build install mode should use the installer kernel data key

scripts/image_signing/sign_official_build.sh

Index: scripts/image_signing/sign_official_build.sh
diff --git a/scripts/image_signing/sign_official_build.sh b/scripts/image_signing/sign_official_build.sh
index 4fa9f2dd4ab7ab0410e24b7e89f0c129ff9b7517..f8bf23c78caad27d8fcfdfe788a0e57adc900722 100755
--- a/scripts/image_signing/sign_official_build.sh
+++ b/scripts/image_signing/sign_official_build.sh
@@ -390,7 +390,7 @@ sign_for_recovery() {
 # Generate the factory install image.
 sign_for_factory_install() {
   ${SCRIPT_DIR}/resign_image.sh ${INPUT_IMAGE} ${OUTPUT_IMAGE} \
-    ${KEY_DIR}/recovery_kernel_data_key.vbprivk \
+    ${KEY_DIR}/installer_kernel_data_key.vbprivk \
     ${KEY_DIR}/installer_kernel.keyblock
   echo "Signed factory install image output to ${OUTPUT_IMAGE}"
 }
@@ -438,7 +438,7 @@ elif [ "${TYPE}" == "install" ]; then
   resign_firmware_payload ${INPUT_IMAGE}
   update_rootfs_hash ${INPUT_IMAGE} \
     ${KEY_DIR}/installer_kernel.keyblock \
-    ${KEY_DIR}/recovery_kernel_data_key.vbprivk \
+    ${KEY_DIR}/installer_kernel_data_key.vbprivk \
     2
   sign_for_factory_install
 else