* config/tc-arm.c (do_iwmmxt_wldstbh): Don't multiply offset by 4

	* config/tc-arm.c (do_iwmmxt_wldstbh): Don't multiply offset by 4
	here.
	(md_apply_fix3): Multiply offset by 4 here for
	BFD_RELOC_ARM_CP_OFF_IMM_S2 and BFD_RELOC_ARM_T32_CP_OFF_IMM_S2.

testsuite:
	* gas/arm/iwmmxt.s: Increase offsets for wstrb and wstrh.
	* gas/arm/iwmmxt.d: Update expected results.
	* gas/arm/iwmmxt-bad2.s: Test wstrb, wstrh, wldrb and wldrh.
	* gas/arm/iwmmxt-bad2.l: Update expected error messages.