mfd: pcf50633: Fix spelling mistake: 'Falied' -> 'Failed'

Trivial fix to spelling mistakes in 'pcf50633_client_dev_register'.

Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
diff --git a/drivers/mfd/pcf50633-core.c b/drivers/mfd/pcf50633-core.c
index 6155d12..f952dff 100644
--- a/drivers/mfd/pcf50633-core.c
+++ b/drivers/mfd/pcf50633-core.c
@@ -149,7 +149,7 @@
 
 	*pdev = platform_device_alloc(name, -1);
 	if (!*pdev) {
-		dev_err(pcf->dev, "Falied to allocate %s\n", name);
+		dev_err(pcf->dev, "Failed to allocate %s\n", name);
 		return;
 	}