ARM: zynq: Add support for zc770-xm011

Add xm011 DTS file and related configs and configurations.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/configs/zynq_zc770_xm011_defconfig b/configs/zynq_zc770_xm011_defconfig
new file mode 100644
index 0000000..8f9221d
--- /dev/null
+++ b/configs/zynq_zc770_xm011_defconfig
@@ -0,0 +1,13 @@
+CONFIG_ARM=y
+CONFIG_ARCH_ZYNQ=y
+CONFIG_TARGET_ZYNQ_ZC770=y
+CONFIG_DEFAULT_DEVICE_TREE="zynq-zc770-xm011"
+# CONFIG_SYS_MALLOC_F is not set
+CONFIG_SPL=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_FIT_SIGNATURE=y
+CONFIG_SYS_EXTRA_OPTIONS="ZC770_XM011"
+# CONFIG_CMD_IMLS is not set
+# CONFIG_CMD_FLASH is not set
+# CONFIG_CMD_SETEXPR is not set