x86: Use consistent name XXX_ADDR for binary blob flash address

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/x86/cpu/ivybridge/sdram.c b/arch/x86/cpu/ivybridge/sdram.c
index df2b990..b95e781 100644
--- a/arch/x86/cpu/ivybridge/sdram.c
+++ b/arch/x86/cpu/ivybridge/sdram.c
@@ -177,7 +177,7 @@
 
 	debug("PEI data at %p, size %x:\n", pei_data, sizeof(*pei_data));
 
-	data = (char *)CONFIG_X86_MRC_START;
+	data = (char *)CONFIG_X86_MRC_ADDR;
 	if (data) {
 		int rv;
 		int (*func)(struct pei_data *);