ARM: dts: omap3-igep: Fix bus-width for mmc1

Both, IGEPv2 and IGEP COM MODULE have a bus-width of 4 not 8, so fix this and
do not mux data pins from mmc1_data4 to mmc1_data7.
Signed-off-by: Enric Balletbo i Serra <eballetbo@gmail.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/boot/dts/omap3-igep.dtsi

@@ -65,10 +65,6 @@ mmc1_pins: pinmux_mmc1_pins {
 			0x11a (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat1.sdmmc1_dat1 */
 			0x11c (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat2.sdmmc1_dat2 */
 			0x11e (PIN_INPUT_PULLUP | MUX_MODE0)	/* sdmmc1_dat3.sdmmc1_dat3 */
-			0x120 (PIN_INPUT | MUX_MODE0)		/* sdmmc1_dat4.sdmmc1_dat4 */
-			0x122 (PIN_INPUT | MUX_MODE0)		/* sdmmc1_dat5.sdmmc1_dat5 */
-			0x124 (PIN_INPUT | MUX_MODE0)		/* sdmmc1_dat6.sdmmc1_dat6 */
-			0x126 (PIN_INPUT | MUX_MODE0)		/* sdmmc1_dat7.sdmmc1_dat7 */
 		>;
 	};
 
@@ -114,7 +110,7 @@ &mmc1 {
       pinctrl-0 = <&mmc1_pins>;
       vmmc-supply = <&vmmc1>;
       vmmc_aux-supply = <&vsim>;
-      bus-width = <8>;
+      bus-width = <4>;
 };
 
 &mmc2 {