Tests for Downloading Image onto the BMC

- Upload images via REST
- Upload images via TFTP

Resolves openbmc/openbmc-test-automation#510

Change-Id: Id55f12d0d0354024c57ca929953b408e70876b40
Signed-off-by: Saqib Khan <khansa@us.ibm.com>
diff --git a/tools/generate_argumentfile.sh b/tools/generate_argumentfile.sh
index 1a114a3..0529469 100755
--- a/tools/generate_argumentfile.sh
+++ b/tools/generate_argumentfile.sh
@@ -22,3 +22,6 @@
 echo "--variable OS_USERNAME:$OS_USERNAME" >> $ARG_FILE
 echo "--variable OS_PASSWORD:$OS_PASSWORD" >> $ARG_FILE
 echo "--variable DEBUG_TARBALL_PATH:$DEBUG_TARBALL_PATH" >> $ARG_FILE
+echo "--variable TFTP_SERVER:$TFTP_SERVER" >> $ARG_FILE
+echo "--variable TFTP_FILE_NAME:$TFTP_FILE_NAME" >> $ARG_FILE
+echo "--variable IMAGE_FILE_PATH:$IMAGE_FILE_PATH" >> $ARG_FILE