build-setup.sh: add liblz4-tool zstd

Latest upstream yocto requires these three new tools:
  lz4c, pzstd, zstd

Change-Id: Ie54bd364f36ea75ed307de9b5f4365643972da10
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/build-setup.sh b/build-setup.sh
index 4022d54..b1014d0 100755
--- a/build-setup.sh
+++ b/build-setup.sh
@@ -227,6 +227,7 @@
       git \
       iputils-ping \
       libdata-dumper-simple-perl \
+      liblz4-tool \
       libsdl1.2-dev \
       libthread-queue-any-perl \
       locales \
@@ -235,7 +236,8 @@
       socat \
       subversion \
       texinfo \
-      wget
+      wget \
+      zstd
 
   # Set the locale
   RUN locale-gen en_US.UTF-8