arm: socfpga: spl: add CONFIG_SPL_STACK to socfpga_common.h

Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
diff --git a/include/configs/socfpga_common.h b/include/configs/socfpga_common.h
index 9b29c60..1111c16 100644
--- a/include/configs/socfpga_common.h
+++ b/include/configs/socfpga_common.h
@@ -305,6 +305,11 @@
 #define CONFIG_SPL_WATCHDOG_SUPPORT
 #define CONFIG_SPL_SERIAL_SUPPORT
 
+/*
+ * Stack setup
+ */
+#define CONFIG_SPL_STACK		CONFIG_SYS_INIT_SP_ADDR
+
 #ifdef CONFIG_SPL_BUILD
 #undef CONFIG_PARTITIONS
 #endif