New split_dict_on_key function
New split_dict_on_key function

Change-Id: I7f27a68c8116e2e59e00d70a9bef4727dcaeab3b
Signed-off-by: Michael Walsh <10404802c7de463f402c4a18638106ca1b12ef61@us.ibm.com>

openbmc/openbmc-test-automation,openbmc/openbmc-test-automation