Add scripts to generate factory images for Redfin

BUG: 147820999
TEST: Generated a package on rvc-d1-release
Change-Id: I9476490d19ea33a4cbd02793f2db9c087388608d

factory-images/generate-factory-images-package.sh

@@ -0,0 +1,25 @@
+#!/bin/sh
+
+# Copyright 2020 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+source ../../../common/clear-factory-images-variables.sh
+BUILD=6291635
+DEVICE=redfin
+PRODUCT=redfin
+VERSION=rd1a.200312.002
+SRCPREFIX=signed-
+BOOTLOADER=r3-0.3-6265493
+RADIO=g7250-00014-200305-B-6264959
+source ../../../common/generate-factory-images-common.sh