ARM: UniPhier: use DRAM area for init stack of normal image

The normal image is working on DRAM.  It is better to use DRAM also
for init stack than L2 cache.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>

include/configs/uniphier.h

@@ -273,7 +273,11 @@
 #define CONFIG_SYS_SPL_MALLOC_START	(0x0ff00000)
 #define CONFIG_SYS_SPL_MALLOC_SIZE	(0x00004000)
 
+#ifdef CONFIG_SPL_BUILD
 #define CONFIG_SYS_INIT_SP_ADDR		(0x0ff08000)
+#else
+#define CONFIG_SYS_INIT_SP_ADDR		((CONFIG_SYS_TEXT_BASE) - 0x00001000)
+#endif
 
 #define CONFIG_SPL_FRAMEWORK
 #define CONFIG_SPL_NAND_SUPPORT