staging: unisys: get rid of UltraLogEvent macro

Remove the UltraLogEvent macro from channel.h, and fix all references so
they call pr_info directly. CamelCase names used by functions that
called UltraLogEvent will be fixed in later patches.

Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>