armv8/ls2085ardb: Add support of LS2085ARDB platform

The LS2085ARDB is a evaluation platform that supports LS2085A
family SoCs. This patch add sbasic support for the platform.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
diff --git a/configs/ls2085ardb_defconfig b/configs/ls2085ardb_defconfig
new file mode 100644
index 0000000..6b64f71
--- /dev/null
+++ b/configs/ls2085ardb_defconfig
@@ -0,0 +1,3 @@
+CONFIG_SYS_EXTRA_OPTIONS="SYS_FSL_DDR4"
+CONFIG_ARM=y
+CONFIG_TARGET_LS2085ARDB=y