staging: unisys: visorinput: removed enum in ultrainputreport.h to match driver namespace

Removed enum ultra_inputaction in ultrainputreport.h and changed
elements to #defnes.

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>