armv8: ls2085a: Add support of random MAC address

Add support of setting RANDOM MAC address if env variable not available.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/configs/ls2085a_simu_defconfig b/configs/ls2085a_simu_defconfig
index de9776d..9d04218 100644
--- a/configs/ls2085a_simu_defconfig
+++ b/configs/ls2085a_simu_defconfig
@@ -12,3 +12,4 @@
 # CONFIG_CMD_SETEXPR is not set
 # CONFIG_CMD_NFS is not set
 # CONFIG_CMD_MISC is not set
+CONFIG_NET_RANDOM_ETHADDR=y
diff --git a/configs/ls2085aqds_defconfig b/configs/ls2085aqds_defconfig
index 0c770e4..78b121d 100644
--- a/configs/ls2085aqds_defconfig
+++ b/configs/ls2085aqds_defconfig
@@ -7,6 +7,7 @@
 CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4"
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
+CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_DM=y
 CONFIG_NETDEVICES=y
 CONFIG_E1000=y
diff --git a/configs/ls2085aqds_nand_defconfig b/configs/ls2085aqds_nand_defconfig
index 10eda97..ce2a81c 100644
--- a/configs/ls2085aqds_nand_defconfig
+++ b/configs/ls2085aqds_nand_defconfig
@@ -3,5 +3,6 @@
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4,NAND"
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_NETDEVICES=y
 CONFIG_E1000=y
diff --git a/configs/ls2085ardb_defconfig b/configs/ls2085ardb_defconfig
index 7956533..d0f16f2 100644
--- a/configs/ls2085ardb_defconfig
+++ b/configs/ls2085ardb_defconfig
@@ -7,6 +7,7 @@
 CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4"
 # CONFIG_CMD_SETEXPR is not set
 CONFIG_OF_CONTROL=y
+CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_DM=y
 CONFIG_NETDEVICES=y
 CONFIG_E1000=y
diff --git a/configs/ls2085ardb_nand_defconfig b/configs/ls2085ardb_nand_defconfig
index 96a0dfd..25a6f71 100644
--- a/configs/ls2085ardb_nand_defconfig
+++ b/configs/ls2085ardb_nand_defconfig
@@ -3,5 +3,6 @@
 CONFIG_SPL=y
 CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4,NAND"
 # CONFIG_CMD_SETEXPR is not set
+CONFIG_NET_RANDOM_ETHADDR=y
 CONFIG_NETDEVICES=y
 CONFIG_E1000=y