mediatek: filogic: fix nvmem cell names of the GL.iNet MT-2500

Fix style of nvmem cell names in the device tree of the GL.iNet MT-2500.

Fixes: 49ed52b862 ("mediatek: filogic: convert GL.iNet MT-2500 to use NVMEM-on-MMC)"
Signed-off-by: Daniel Golle <[email protected]>

target/linux/mediatek/dts/mt7981b-glinet-gl-mt2500.dts

@@ -184,19 +184,19 @@
 					#nvmem-cell-cells = <1>;
 				};
 
-				ddns_boot1_10@10 {
+				ddns@10 {
 					reg = <0x10 0x10>;
 				};
 
-				sn_bak_boot1_20@20 {
+				sn-bak@20 {
 					reg = <0x20 0x10>;
 				};
 
-				sn_boot1_20@30 {
+				sn@30 {
 					reg = <0x30 0x10>;
 				};
 
-				country_code_boot1_88@88 {
+				country-code@88 {
 					reg = <0x88 0x10>;
 				};
 			};