staging: unisys: visorinput: renamed structures in ultrainputreport.h to match driver namespace

Renamed structures
* ultra_inputactivity to visor_inputactivity
* ultra_inputreport to visor_inputreport

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>