x86: Code cleanup

Make the copyright notices in the x86 files consistent and update them with
proper attributions for recent updates

Also fix a few comment style/accuracy and whitespace/blank line issues

Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
diff --git a/arch/i386/cpu/resetvec.S b/arch/i386/cpu/resetvec.S
index d9222dd..27021bd 100644
--- a/arch/i386/cpu/resetvec.S
+++ b/arch/i386/cpu/resetvec.S
@@ -1,7 +1,8 @@
 /*
  *  U-boot - i386 Startup Code
  *
- *  Copyright (c) 2002	Omicron Ceti AB, Daniel Engström <denaiel@omicron.se>
+ * (C) Copyright 2002
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
  *
  * See file CREDITS for list of people who contributed to this
  * project.