NAME
	FreePotBits -- Free allocated bits in the potgo register.

   SYNOPSIS
	FreePotBits(allocated)
	            D0

	void FreePotBits( UWORD );

   FUNCTION
	The FreePotBits routine frees previously allocated bits in the
	hardware potgo register that the application had allocated via
	AllocPotBits and no longer wishes to use.  It accepts the
	return value from AllocPotBits as its argument.