mfd: Fix Kconfig help text for WM8350

More with the grammar.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 287d47b..6ea325c 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -152,7 +152,7 @@
 	depends on I2C
 	help
 	  Support for the Wolfson Microelecronics WM8400 PMIC and audio
-	  CODEC.  This driver adds provides common support for accessing
+	  CODEC.  This driver provides common support for accessing
 	  the device, additional drivers must be enabled in order to use
 	  the functionality of the device.