update board EB+CPUx9K2

* update to support arm reloaction
* unnecessary environment variables removed

Signed-off-by: Jens Scharsig <js_at_ng@scharsoft.de>
diff --git a/board/BuS/eb_cpux9k2/cpux9k2.c b/board/BuS/eb_cpux9k2/cpux9k2.c
index bbceaf3..fe62a0f 100644
--- a/board/BuS/eb_cpux9k2/cpux9k2.c
+++ b/board/BuS/eb_cpux9k2/cpux9k2.c
@@ -66,7 +66,7 @@
 
 	gd->bd->bi_arch_number = MACH_TYPE_EB_CPUX9K2;
 	/* adress of boot parameters */
-	gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
+	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
 
 #ifdef CONFIG_STATUS_LED
 	status_led_set(STATUS_LED_BOOT, STATUS_LED_ON);
@@ -134,9 +134,8 @@
 
 int dram_init(void)
 {
-	gd->bd->bi_dram[0].start = PHYS_SDRAM;
-	gd->bd->bi_dram[0].size =
-		get_ram_size((volatile long *) PHYS_SDRAM, PHYS_SDRAM_SIZE);
+	gd->ram_size = get_ram_size((volatile long *)CONFIG_SYS_SDRAM_BASE,
+			CONFIG_SYS_SDRAM_SIZE);
 	return 0;
 }