xtensa.c (function_arg_boundary): Really rename to...

	* config/xtensa/xtensa.c (function_arg_boundary): Really rename to...
	(xtensa_function_arg_boundary): ...this.
	* config/picochip/pichochip.c (picochip_function_arg_boundary): Fix
	thinko in declaration.
	(picochip_function_arg, picochip_arg_partial_bytes): Pass proper
	number of parameters to picochip_function_arg_boundary.
	(picochip_arg_advance): Likewise.

From-SVN: r166853