[MIPS] Fix thinko in insn length calculation

[Richard Sandiford]

Eric Botcazou <ebotcazou@adacore.com> writes:
> 2010-11-20  Eric Botcazou  <ebotcazou@adacore.com>
>
> 	* config/mips/mips.c (machine_function): Rename load_label_length to
> 	load_label_num_insns.
> 	(mips_load_label_length): Rename to...
> 	(mips_load_label_num_insns): ...this.  Adjust to first renaming.
> 	(mips_adjust_insn_length): Adjust to second renaming.  Fix thinko.

OK, thanks.

Richard