* config/tc-mips.h: Define TARGET_FORMAT if OBJ_ELF.

	* config/tc-mips.h: Define TARGET_FORMAT if OBJ_ELF.
	* config/tc-mips.c (GPOPT): Define if OBJ_ECOFF or OBJ_ELF.
	(various): Change all references to GP references to apply if
	GPOPT, not if OBJ_ECOFF.
	(s_change_sec): Rearrange somewhat.  If OBJ_ELF, use .rodata
	instead of .rdata.  If OBJ_ELF, set section flags for .rodata and
	.sdata sections.
	(s_frame, s_loc, s_mask): Comment out entire functions, rather
	than just body.  They're not used anyhow.
	* configure.in: Set cpu_type to mips for mips*.  Accept
	mips-*-elfl* and mips-*-elf*.