feat(sptool): include HOB file in the TL pkg

If the "hob_path" has been introduced in the `args`
dictionary, use it when creating a Transfer List
type of package.

Create a HOB entry in the transfer list with the
respective transfer entry type.

Signed-off-by: Kathleen Capella <kathleen.capella@arm.com>
Signed-off-by: J-Alves <joao.alves@arm.com>
Change-Id: Ie5fefe90205cf89ee26c3683048bf42229cb4bee
1 file changed