staging: comedi: mf6x4: change type of local variable

For aesthetics, change the type of this local variable to unsigned int.

This fixes the checkpatch.pl issue about:
CHECK: Prefer kernel type 'u32' over 'uint32_t'
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
 drivers/staging/comedi/drivers/mf6x4.c | 60 +++++++++++++++++-----------------
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/comedi/drivers/mf6x4.c

@@ -168,7 +168,7 @@ static int mf6x4_ao_insn_write(struct comedi_device *dev,
 	struct mf6x4_private *devpriv = dev->private;
 	unsigned int chan = CR_CHAN(insn->chanspec);
 	unsigned int val = s->readback[chan];
-	uint32_t gpioc;
+	unsigned int gpioc;
 	int i;
 
 	/* Enable instantaneous update of converters outputs + Enable DACs */