Staging: w35und: simplify hal_init_hardware() and hal_halt()

Impact: cleanup

Now that hal_halt() is called from wb35_hw_halt() only where
->InitialResource is always set to 4, we can simplify
hal_init_hardware() and hal_halt().

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>