ARM: pxa: raumfeld-common: fix comments in gpio_keys pinctrl node

Careless oversight.
Signed-off-by: Daniel Mack <daniel@zonque.org>
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>

arch/arm/boot/dts/pxa300-raumfeld-common.dtsi

@@ -319,9 +319,9 @@ MFP_PIN_PXA300(22) MFP_AF1	/* I2C_SDA	*/
 
 	gpio_keys_pins: gpio-keys-pins {
 		pinctrl-single,pins = <
-			MFP_PIN_PXA300(14) MFP_AF0	/* SCK		*/
-			MFP_PIN_PXA300(115) MFP_AF0	/* MOSI		*/
-			MFP_PIN_PXA300(119) MFP_AF0	/* MISO		*/
+			MFP_PIN_PXA300(14) MFP_AF0	/* on-off	*/
+			MFP_PIN_PXA300(115) MFP_AF0	/* rescue boot	*/
+			MFP_PIN_PXA300(119) MFP_AF0	/* setup	*/
 		>;
 		pinctrl-single,low-power-mode = MFP_LPM(MFP_LPM_FLOAT);
 	};