* xstormy16-tdep.c (xstormy16_scan_prologue): Add frameless

	* xstormy16-tdep.c (xstormy16_scan_prologue): Add frameless
	parameter.  Set frameless flag if it exists and depended of
	whether the scanned function is frameless or not.
	(xstormy16_skip_prologue): If function is frameless, return
	result of xstormy16_scan_prologue().
	(xstormy16_frame_init_saved_regs): Adjust xstormy16_scan_prologue()
	call.