staging: unisys: visorbus: renamed #defines in visorchipset.c to match driver namespace

Renamed #defines
* UNISYS_SPAR_LEAF_ID to UNISYS_VISOR_LEAF_ID
* UNISYS_SPAR_ID_EBX to UNISYS_VISOR_ID_EBX
* UNISYS_SPAR_ID_ECX to UNISYS_VISOR_ID_ECX
* UNISYS_SPAR_ID_EDX to UNISYS_VISOR_ID_EDX

Signed-off-by: Sameer Wadgaonkar <sameer.wadgaonkar@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>