imx: imx93_evk: Add basic board support

Add basic board codes and defconfig for i.MX93 11x11 EVK board.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
diff --git a/board/freescale/imx93_evk/Makefile b/board/freescale/imx93_evk/Makefile
new file mode 100644
index 0000000..575f8e9
--- /dev/null
+++ b/board/freescale/imx93_evk/Makefile
@@ -0,0 +1,12 @@
+#
+# Copyright 2022 NXP
+#
+# SPDX-License-Identifier:      GPL-2.0+
+#
+
+obj-y += imx93_evk.o
+
+ifdef CONFIG_SPL_BUILD
+obj-y += spl.o
+obj-$(CONFIG_IMX93_EVK_LPDDR4X) += lpddr4x_timing.o
+endif