MIPS: ralink: Fix a typo in the pinmux setup.

There is a typo inside the pinmux setup code. The function is really
called utif and not util. This was recently discovered when people were
trying to make the UTIF interface work.

Signed-off-by: John Crispin <john@phrozen.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/14899/


Signed-off-by: Ralf Baechle <ralf@linux-mips.org>