ColdFire: Fix compilation with CONFIG_SYS_DRAMSZ1 defined

A temp variable was used but not declared, with CONFIG_SYS_DRAMSZ1
defined. This variable is now declared in the functione when needed.

Signed-off-by: Stany MARCEL <stany.marcel@novasys-ingenierie.com>

board/freescale/m548xevb/m548xevb.c

@@ -43,6 +43,9 @@ phys_size_t initdram(int board_type)
 	volatile siu_t *siu = (siu_t *) (MMAP_SIU);
 	volatile sdram_t *sdram = (volatile sdram_t *)(MMAP_SDRAM);
 	u32 dramsize, i;
+#ifdef CONFIG_SYS_DRAMSZ1
+	u32 temp;
+#endif
 
 	siu->drv = CONFIG_SYS_SDRAM_DRVSTRENGTH;