staging: unisys: include: renamed #defines in iochannel.h to match driver namespace

Renamed #defines
* ULTRA_VHBA_CHANNEL_PROTOCOL_SIGNATURE to
		VISOR_VHBA_CHANNEL_SIGNATURE
* ULTRA_VNIC_CHANNEL_PROTOCOL_SIGNATURE to
		VISOR_VNIC_CHANNEL_SIGNATURE
* ULTRA_VSWITCH_CHANNEL_PROTOCOL_SIGNATURE to
		VISOR_VSWITCH_CHANNEL_SIGNATURE
* ULTRA_VHBA_CHANNEL_PROTOCOL_VERSIONID to
		VISOR_VHBA_CHANNEL_VERSIONID
* ULTRA_VNIC_CHANNEL_PROTOCOL_VERSIONID to
		VISOR_VNIC_CHANNEL_VERSIONID
* ULTRA_VSWITCH_CHANNEL_PROTOCOL_VERSIONID to
		VISOR_VSWITCH_CHANNEL_VERSIONID
* SPAR_VHBA_CHANNEL_OK_CLIENT to VISOR_VHBA_CHANNEL_OK_CLIENT
* SPAR_VNIC_CHANNEL_OK_CLIENT to VISOR_VNIC_CHANNEL_OK_CLIENT

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>