powerpc/mv64x60: Suspected typo in assignment

Untested, but looks like an obvious typo to me.

[BenH: No feedback, but it's obviously wrong]
Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/sysdev/mv64x60_dev.c

@@ -346,7 +346,7 @@ static int __init mv64x60_i2c_device_setup(struct device_node *np, int id)
 	if (prop)
 		pdata.freq_m = *prop;
 
-	pdata.freq_m = 3;	/* default */
+	pdata.freq_n = 3;	/* default */
 	prop = of_get_property(np, "freq_n", NULL);
 	if (prop)
 		pdata.freq_n = *prop;