In sim/common:

In sim/common:
	* sim-endian.h: Don't have parameters on macro definitions which
	are simply renaming functions, to permit use of XCONCAT2 in both
	the macro name and the arguments in a use of such a definition.
In sim/ppc:
	* sim-endian.h: Don't have parameters on macro definitions which
	are simply renaming functions, to permit use of XCONCAT2 in both
	the macro name and the arguments in a use of such a definition.