* config/tc-sparc.c (md_shortopts): Add "K:" if OBJ_ELF.

	* config/tc-sparc.c (md_shortopts): Add "K:" if OBJ_ELF.
	(md_parse_option): If OBJ_ELF, check for -K.  Die if -K PIC, since
	PIC code is not currently supported.

	* as.c (parse_args): Change std_shortopts to be an array rather
	than a constant string.  Only include 'K' if WORKING_DOT_WORD is
	not defined.  Only check for 'K' in that case as well.
	* as.h (flag_warn_displacement): Only declare if WORKING_DOT_WORD
	is not defined.
PR 7131.