Add localdebs dir to install deb files

1. Add deb files in build/debian/localdebs
2. Add pkg names in build/debian/fai_config/package_config/AVF

Bug: 372168347
Bug: 380176863
Test: add deb files in localdebs and build
Change-Id: I01555aa1393369e9098d4d7f3abc52316d795959
diff --git a/build/debian/build.sh b/build/debian/build.sh
index 9eb478b..9104adc 100755
--- a/build/debian/build.sh
+++ b/build/debian/build.sh
@@ -70,6 +70,7 @@
 install_prerequisites() {
 	apt update
 	packages=(
+		apt-utils
 		automake
 		binfmt-support
 		build-essential
@@ -186,6 +187,7 @@
 	cp -R "${src}"/* "${dst}"
 	cp "$(dirname "$0")/image.yaml" "${resources_dir}"
 
+	cp -R "$(dirname "$0")/localdebs/" "${debian_cloud_image}/"
 	build_ttyd
 	build_rust_binary_and_copy forwarder_guest
 	build_rust_binary_and_copy forwarder_guest_launcher