staging: unisys: replace typedef ULTRA_EFI_SPAR_INDICATION

Replace ULTRA_EFI_SPAR_INDICATION with struct efi_spar_indication, and
update references to the old type.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>