armv8: ls2080a: update eth prime

As per new PHY framework, DPNI naming convetion is no more used.
Use new naming convention.

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/include/configs/ls2080ardb.h b/include/configs/ls2080ardb.h
index 5bec509..45827f6 100644
--- a/include/configs/ls2080ardb.h
+++ b/include/configs/ls2080ardb.h
@@ -366,7 +366,7 @@
 #define AQR405_IRQ_MASK		0x36
 
 #define CONFIG_MII
-#define CONFIG_ETHPRIME		"DPNI1"
+#define CONFIG_ETHPRIME		"DPMAC1@xgmii"
 #define CONFIG_PHY_GIGE
 #define CONFIG_PHY_AQUANTIA
 #endif