global: Migrate CONFIG_X86_MRC_ADDR to CFG

Perform a simple rename of CONFIG_X86_MRC_ADDR to CFG_X86_MRC_ADDR

Signed-off-by: Tom Rini <trini@konsulko.com>
diff --git a/arch/x86/cpu/intel_common/mrc.c b/arch/x86/cpu/intel_common/mrc.c
index a4918fb..69405d7 100644
--- a/arch/x86/cpu/intel_common/mrc.c
+++ b/arch/x86/cpu/intel_common/mrc.c
@@ -200,7 +200,7 @@
 
 	debug("PEI data at %p:\n", pei_data);
 
-	data = (char *)CONFIG_X86_MRC_ADDR;
+	data = (char *)CFG_X86_MRC_ADDR;
 	if (data) {
 		int rv;
 		ulong start;