update_program_fw: Add support for ambassador firmware

Ambassador has the same set of packages to emerge as Puff.

BUG=none
TEST=ran ambassador upgrade

Change-Id: Iafbe9a1ed2db22abbc43c513d8e78cd2b332bb97
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/dev-util/+/2590061
Tested-by: Matthew Ziegelbaum <ziegs@chromium.org>
Commit-Queue: Andrew McRae <amcrae@chromium.org>
Auto-Submit: Matthew Ziegelbaum <ziegs@chromium.org>
Reviewed-by: Andrew McRae <amcrae@chromium.org>
diff --git a/contrib/update_program_fw b/contrib/update_program_fw
index f956699..5134049 100755
--- a/contrib/update_program_fw
+++ b/contrib/update_program_fw
@@ -528,6 +528,9 @@
   "zork")
     PACKAGES=(coreboot-zork chromeos-bootimage)
     ;;
+  "ambassador")
+    # Ambassador firmware needs the same set of packages as Puff
+    ;&
   "puff")
     PACKAGES=(chromeos-ec coreboot depthcharge vboot_reference libpayload chromeos-bootimage coreboot-private-files intel-cmlfsp coreboot-private-files-puff)
     ;;