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

Renamed #defines
* ULTRA_CHANNEL_PROTOCOL_SIGNATURE to
		VISOR_CHANNEL_SIGNATURE
* SPAR_CHANNEL_SERVER_READY to
		VISOR_CHANNEL_SERVER_READY
* ULTRA_VALID_CHANNELCLI_TRANSITION
		VISOR_VALID_CHANNELCLI_TRANSITION
* ULTRA_CLIERRORBOOT_THROTTLEMSG_DISABLED to
		VISOR_CLIERRORBOOT_THROTTLEMSG_DISABLED
* ULTRA_CLIERRORBOOT_THROTTLEMSG_NOTATTACHED to
		VISOR_CLIERRORBOOT_THROTTLEMSG_NOTATTACHED
* ULTRA_CLIERRORBOOT_THROTTLEMSG_BUSY to
		VISOR_CLIERRORBOOT_THROTTLEMSG_BUSY
* ULTRA_IO_DRIVER_ENABLES_INTS to
		VISOR_DRIVER_ENABLES_INTS
* ULTRA_IO_CHANNEL_IS_POLLING to
		VISOR_CHANNEL_IS_POLLING
* ULTRA_IO_IOVM_IS_OK_WITH_DRIVER_DISABLING_INTS to
		VISOR_IOVM_OK_DRIVER_DISABLING_INTS
* ULTRA_IO_DRIVER_DISABLES_INTS to
		VISOR_DRIVER_DISABLES_INTS
* ULTRA_IO_DRIVER_SUPPORTS_ENHANCED_RCVBUF_CHECKING to
		VISOR_DRIVER_ENHANCED_RCVBUF_CHECKING
* ULTRA_CHANNEL_ENABLE_INTS to
		VISOR_CHANNEL_ENABLE_INTS
* SPAR_VHBA_CHANNEL_PROTOCOL_UUID to VISOR_VHBA_CHANNEL_UUID
* SPAR_VHBA_CHANNEL_PROTOCOL_UUID_STR to
		VISOR_VHBA_CHANNEL_UUID_STR
* SPAR_VNIC_CHANNEL_PROTOCOL_UUID to VISOR_VNIC_CHANNEL_UUID
* SPAR_VNIC_CHANNEL_PROTOCOL_UUID_STR to
		VISOR_VNIC_CHANNEL_UUID_STR
* SPAR_SIOVM_UUID to VISOR_SIOVM_UUID

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>