ARM64: zynqmp: Enable advance memory test by default

Temp space in at the beginning of OCM.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/include/configs/xilinx_zynqmp.h b/include/configs/xilinx_zynqmp.h
index 2d9f020..f6a36a3 100644
--- a/include/configs/xilinx_zynqmp.h
+++ b/include/configs/xilinx_zynqmp.h
@@ -28,6 +28,9 @@
 #define CONFIG_SYS_SDRAM_BASE		0
 #define CONFIG_SYS_SDRAM_SIZE		0x40000000
 
+#define CONFIG_SYS_ALT_MEMTEST
+#define CONFIG_SYS_MEMTEST_SCRATCH	0xfffc0000
+
 #define CONFIG_SYS_MEMTEST_START	CONFIG_SYS_SDRAM_BASE
 #define CONFIG_SYS_MEMTEST_END		CONFIG_SYS_SDRAM_SIZE