build-setup: add vim to bitbake build container

There are times when interactively working within a bitbake docker
container that having vim available is useful.

Change-Id: I7950064d277bd5ed394ff50419e97be676b25c72
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/build-setup.sh b/build-setup.sh
index e40f54e..4508c55 100755
--- a/build-setup.sh
+++ b/build-setup.sh
@@ -252,6 +252,7 @@
       socat \
       subversion \
       texinfo \
+      vim \
       wget \
       zstd