staging: unisys: Fix CamelCase local variable in remaining_steps functions

Rename the CamelCase local variable

remainingSteps => remaining_steps

Update all references to use the corrected name.

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