spi: npcm-fiu: fix spelling mistake "frequancy" -> "frequency"

There is a spelling mistake in a dev_warning message. Fix it. Also
break line to clear up checkpatch warning.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20190903122812.3986-1-colin.king@canonical.comSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/spi-npcm-fiu.c

@@ -544,7 +544,8 @@ static int npcm_fiu_exec_op(struct spi_mem *mem, const struct spi_mem_op *op)
 	if (fiu->clkrate != chip->clkrate) {
 		ret = clk_set_rate(fiu->clk, chip->clkrate);
 		if (ret < 0)
-			dev_warn(fiu->dev, "Failed setting %lu frequancy, stay at %lu frequancy\n", chip->clkrate, fiu->clkrate);
+			dev_warn(fiu->dev, "Failed setting %lu frequency, stay at %lu frequency\n",
+				 chip->clkrate, fiu->clkrate);
 		else
 			fiu->clkrate = chip->clkrate;
 	}