Documentation: dt: mfd: fix spelling mistakes

Signed-off-by: Eric Engestrom <eric@engestrom.ch>
Signed-off-by: Rob Herring <robh@kernel.org>

Documentation/devicetree/bindings/mfd/qcom-rpm.txt

@@ -178,7 +178,7 @@ see regulator.txt - with additional custom properties described below:
 - qcom,force-mode:
 	Usage: optional (default if no other qcom,force-mode is specified)
 	Value type: <u32>
-	Defintion: indicates that the regulator should be forced to a
+	Definition: indicates that the regulator should be forced to a
 		   particular mode, valid values are:
 		   QCOM_RPM_FORCE_MODE_NONE - do not force any mode
 		   QCOM_RPM_FORCE_MODE_LPM - force into low power mode
@@ -204,7 +204,7 @@ see regulator.txt - with additional custom properties described below:
 - qcom,force-mode:
 	Usage: optional
 	Value type: <u32>
-	Defintion: indicates that the regulator should not be forced to any
+	Definition: indicates that the regulator should not be forced to any
 		   particular mode, valid values are:
 		   QCOM_RPM_FORCE_MODE_NONE - do not force any mode
 		   QCOM_RPM_FORCE_MODE_LPM - force into low power mode