jammy-amd64-tf-a-build: Add 'expect'

Based on bionic-amd64-tf-a-build.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: I8707861404315575a888803a716bbe00b88c6433
diff --git a/jammy-amd64-tf-a-build/Dockerfile b/jammy-amd64-tf-a-build/Dockerfile
index 061e47a..bf8ca1d 100644
--- a/jammy-amd64-tf-a-build/Dockerfile
+++ b/jammy-amd64-tf-a-build/Dockerfile
@@ -19,6 +19,7 @@
     default-jre \
     device-tree-compiler \
     doxygen \
+    expect \
     exuberant-ctags \
     file \
     flex \