regulator: Kconfig: Fix typo

Fix typo in regulator Kconfig for the TPS80031 tristate string (trivial)
Signed-off-by: Sebastiaan Schalbroeck <schalbroeck@gmail.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

drivers/regulator/Kconfig

@@ -820,7 +820,7 @@ config REGULATOR_TPS65912
 	    This driver supports TPS65912 voltage regulator chip.
 
 config REGULATOR_TPS80031
-	tristate "TI TPS80031/TPS80032 power regualtor driver"
+	tristate "TI TPS80031/TPS80032 power regulator driver"
 	depends on MFD_TPS80031
 	help
 	  TPS80031/ TPS80032 Fully Integrated Power Management with Power