ARM: dts: bcm2835: Fix labels for GPIO 0,1

According to the schematics for all RPis with a 40 pin header,
the GPIOs 0 and 1 are labeled as ID_SD and ID_SC. In order to
clarify that is a I2C bus, append the third letter.
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>

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

@@ -31,8 +31,8 @@ &gpio {
 	 * "FOO" = GPIO line named "FOO" on the schematic
 	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 	 */
-	gpio-line-names = "SDA0",
-			  "SCL0",
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
 			  "SDA1",
 			  "SCL1",
 			  "GPIO_GCLK",

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

@@ -33,8 +33,8 @@ &gpio {
 	 * "FOO" = GPIO line named "FOO" on the schematic
 	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 	 */
-	gpio-line-names = "SDA0",
-			  "SCL0",
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
 			  "SDA1",
 			  "SCL1",
 			  "GPIO_GCLK",

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

@@ -40,8 +40,8 @@ &gpio {
 	 * "FOO" = GPIO line named "FOO" on the schematic
 	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 	 */
-	gpio-line-names = "GPIO0",
-			  "GPIO1",
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
 			  "SDA1",
 			  "SCL1",
 			  "GPIO_GCLK",

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

@@ -28,8 +28,8 @@ &gpio {
 	 * "FOO" = GPIO line named "FOO" on the schematic
 	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
 	 */
-	gpio-line-names = "SDA0",
-			  "SCL0",
+	gpio-line-names = "ID_SDA",
+			  "ID_SCL",
 			  "SDA1",
 			  "SCL1",
 			  "GPIO_GCLK",