imx8m_som.h : use random ethernet MAC addresses

include/configs/imx8m_som.h

@@ -105,6 +105,9 @@
 #define CONFIG_MII
 #define CONFIG_ETHPRIME                 "FEC"
 
+#define CONFIG_NET_RANDOM_ETHADDR
+#define CONFIG_LIB_RAND
+
 #define CONFIG_FEC_MXC
 #define FEC_QUIRK_ENET_MAC
 
@@ -158,7 +161,6 @@
 	"script=boot.scr\0" \
 	"image=Image\0" \
 	"fdt_file=dtbs/librem5-evk.dtb\0" \
-	"ethaddr=3C:FB:96:77:88:A0\0" \
 	"ip_dyn=no\0" \
 	"ipaddr=172.17.33.41\0" \
 	"serverip=172.17.0.1\0" \