Polish the flashrom code comments and outputs a bit

 - Fix a number of typos (found via ispell).

 - Use correct vendor names (as per their websites) consistently.

Corresponding to flashrom svn r985.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
diff --git a/flashchips.c b/flashchips.c
index 2dbc1e0..b88f632 100644
--- a/flashchips.c
+++ b/flashchips.c
@@ -1133,7 +1133,7 @@
 	},
 
 	/* The next two chip definitions have top/bottom boot blocks, but has no
-	device differenciation between the two */
+	device differentiation between the two */
 	{
 		.vendor		= "AMIC",
 		.name		= "A25L40PT",