ARC: Ensure DT mem base is same as what kernel is built with

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index d44eedd..5121b9b 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -43,6 +43,8 @@
 {
 	arc_mem_sz = size & PAGE_MASK;
 	pr_info("Memory size set via devicetree %ldM\n", TO_MB(arc_mem_sz));
+
+	BUG_ON(base != CONFIG_LINUX_LINK_BASE);
 }
 
 #ifdef CONFIG_BLK_DEV_INITRD