raspberrypi-buildbot.sh: Fix output directory.
diff --git a/build-scripts/raspberrypi-buildbot.sh b/build-scripts/raspberrypi-buildbot.sh
index cf0c231..9486198 100755
--- a/build-scripts/raspberrypi-buildbot.sh
+++ b/build-scripts/raspberrypi-buildbot.sh
@@ -28,7 +28,7 @@ if [ "x$MAKE" == "x" ]; then
MAKE="make -j$NCPU"
fi
-BUILDBOTDIR="raspberrypi-buildbot"
+BUILDBOTDIR="buildbot"
PARENTDIR="$PWD"
set -e