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/sc520/sc520_ssi.c b/arch/i386/cpu/sc520/sc520_ssi.c
index 6e5e346..ac58d25 100644
--- a/arch/i386/cpu/sc520/sc520_ssi.c
+++ b/arch/i386/cpu/sc520/sc520_ssi.c
@@ -1,6 +1,6 @@
 /*
  * (C) Copyright 2002
- * Daniel Engström, Omicron Ceti AB <daniel@omicron.se>.
+ * Daniel Engström, Omicron Ceti AB, <daniel@omicron.se>
  *
  * See file CREDITS for list of people who contributed to this
  * project.
@@ -21,8 +21,6 @@
  * MA 02111-1307 USA
  */
 
-/* stuff specific for the sc520, but independent of implementation */
-
 #include <common.h>
 #include <asm/io.h>
 #include <asm/ic/ssi.h>
@@ -77,7 +75,6 @@
 	return readb(&sc520_mmcr->ssircv);
 }
 
-
 void ssi_tx_byte(u8 data)
 {
 	writeb(data, &sc520_mmcr->ssixmit);