m28evk: use same notation to alloc the 128kB stack

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Wolfgang Denk <wd@denx.de>
diff --git a/include/configs/m28evk.h b/include/configs/m28evk.h
index 156af27..a0e90ca 100644
--- a/include/configs/m28evk.h
+++ b/include/configs/m28evk.h
@@ -86,7 +86,7 @@
 #define	CONFIG_NR_DRAM_BANKS		1		/* 1 bank of DRAM */
 #define	PHYS_SDRAM_1			0x40000000	/* Base address */
 #define	PHYS_SDRAM_1_SIZE		0x20000000	/* Max 512 MB RAM */
-#define	CONFIG_STACKSIZE		0x00010000	/* 128 KB stack */
+#define	CONFIG_STACKSIZE		(128 * 1024)	/* 128 KB stack */
 #define	CONFIG_SYS_MALLOC_LEN		0x00400000	/* 4 MB for malloc */
 #define	CONFIG_SYS_GBL_DATA_SIZE	128		/* Initial data */
 #define	CONFIG_SYS_MEMTEST_START	0x40000000	/* Memtest start adr */