x86: Rename i386 to x86

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
diff --git a/common/exports.c b/common/exports.c
index 3dff735..717e4af 100644
--- a/common/exports.c
+++ b/common/exports.c
@@ -15,7 +15,7 @@
 /* Reuse _exports.h with a little trickery to avoid bitrot */
 #define EXPORT_FUNC(sym) gd->jt[XF_##sym] = (void *)sym;
 
-#if !defined(CONFIG_I386) && !defined(CONFIG_PPC)
+#if !defined(CONFIG_X86) && !defined(CONFIG_PPC)
 # define install_hdlr      dummy
 # define free_hdlr         dummy
 #else /* kludge for non-standard function naming */