ath79: rename EEPROM to art

This renames all remaining occurrences of "EEPROM" to "art" to
further harmonize the partition labelling in ath79. This will
help to reduce the amount of user-space code and might be
beneficial when code is copy/pasted in the future.

Affected are only devices from Ubiquiti, where the XM board is
already using "art" in ath79.

Acked-by: Piotr Dymacz <pepe2k@gmail.com>
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>

target/linux/ath79/dts/qca9533_ubnt_acb-isp.dts

@@ -64,8 +64,8 @@
 				read-only;
 			};
 
-			eeprom: partition@ff0000 {
-				label = "EEPROM";
+			art: partition@ff0000 {
+				label = "art";
 				reg = <0xff0000 0x010000>;
 				read-only;
 			};
@@ -79,13 +79,13 @@
 
 &eth0 {
 	status = "okay";
-	mtd-mac-address = <&eeprom 0x0>;
+	mtd-mac-address = <&art 0x0>;
 	phy-handle = <&swphy4>;
 };
 
 &eth1 {
 	status = "okay";
-	mtd-mac-address = <&eeprom 0x6>;
+	mtd-mac-address = <&art 0x6>;
 
 	gmac-config {
 		device = <&gmac>;
@@ -94,5 +94,5 @@
 
 &wmac {
 	status = "okay";
-	mtd-cal-data = <&eeprom 0x1000>;
+	mtd-cal-data = <&art 0x1000>;
 };