bfbootmgr: Remove dump-type UEFI variables (#130)
bfbootmgr: Remove dump-type UEFI variables (#130)

This commit removes the dump-type UEFI variables when doing
'bfbootmgr --cleanall'.

Co-authored-by: Liming Sun <8c82ad08b84dd8373e287e5c0c5fd12b12e37fc3@nvidia.com>
Mellanox/bfscripts,Mellanox/bfscripts