ARM: dts: bcm283x: Fix pinctrl groups

Currently the dtbs_check for bcm2837 generates warnings like this:

gpio@7e200000: 'pinctrl-0' is a dependency of 'pinctrl-names'

This is caused by the definition of pinctrl-names without matching
pinctrl group and vice versa. So defining both at the same place
make the dts files easier to review.

Signed-off-by: Stefan Wahren <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Florian Fainelli <[e-mail]>

arch/arm/boot/dts/broadcom/bcm2835-rpi-a-plus.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
 
 	/* I2S interface */

arch/arm/boot/dts/broadcom/bcm2835-rpi-a.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0 &i2s_alt2>;
 
 	/* I2S interface */

arch/arm/boot/dts/broadcom/bcm2835-rpi-b-plus.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
 
 	/* I2S interface */

arch/arm/boot/dts/broadcom/bcm2835-rpi-b-rev2.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0 &i2s_alt2>;
 
 	/* I2S interface */

arch/arm/boot/dts/broadcom/bcm2835-rpi-b.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0>;
 };
 

arch/arm/boot/dts/broadcom/bcm2835-rpi-cm1-io1.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0>;
 };
 

arch/arm/boot/dts/broadcom/bcm2835-rpi-zero-w.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0>;
 };
 
···
 };
 
 &sdhci {
+	pinctrl-names = "default";
 	pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
 };
 

arch/arm/boot/dts/broadcom/bcm2835-rpi-zero.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
 
 	/* I2S interface */

arch/arm/boot/dts/broadcom/bcm2835-rpi.dtsi

···
 };
 
 &gpio {
-	pinctrl-names = "default";
-
 	gpioout: gpioout {
 		brcm,pins = <6>;
 		brcm,function = <BCM2835_FSEL_GPIO_OUT>;

arch/arm/boot/dts/broadcom/bcm2836-rpi-2-b.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
 
 	/* I2S interface */

arch/arm/boot/dts/broadcom/bcm2837-rpi-cm3-io3.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0>;
 };
 

arch/arm/boot/dts/broadcom/bcm2837-rpi-zero-2-w.dts

···
 			  "SD_DATA2_R",
 			  "SD_DATA3_R";
 
+	pinctrl-names = "default";
 	pinctrl-0 = <&gpioout &alt0>;
 };
 
···
 };
 
 &sdhci {
+	pinctrl-names = "default";
 	pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
 };