staging: unisys: rename visorchannel_funcs.c to visorchannel.c

visorchannel_funcs.c is a remnant of the separate visorchannel
directory.  It should be called visorchannel now.
Signed-off-by: NPrarit Bhargava <prarit@redhat.com>
Signed-off-by: NBenjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/unisys/visorbus/Makefile

@@ -5,7 +5,7 @@
 obj-$(CONFIG_UNISYS_VISORBUS)	+= visorbus.o
 
 visorbus-y := visorbus_main.o
-visorbus-y	+= visorchannel_funcs.o
+visorbus-y += visorchannel.o
 
 ccflags-y += -Idrivers/staging/unisys/include
 ccflags-y += -Idrivers/staging/unisys/visorchipset