Add a bunch of new/tested stuff and various small changes 21

Tested mainboards:
OK:
 - ASUS F2A85-M
   Reported by various corebooters
 - ASUS M2N-MX SE Plus
   Reported by Antonio
 - ASUS P5LD2
   Reported by François Revol
 - Lenovo ThinkPad T530
   Reported and partially authored by Edward O'Callaghan
 - MSI MS-7502 (Medion MD8833)
   Reported by naq on IRC
 - Shuttle AB61
   Reported by olofolleola4
 - ZOTAC IONITX-F-E
   Reported by Bernardo Kuri

Flash chips:
 - Atmel AT45DB021D to PREW (+PREW)
   Reported by The Raven
 - Atmel AT25F4096 to PREW (+PREW)
   Reported by 공준혁
 - GigaDevice GD25Q16(B) to PREW (+PREW)
   Reported by luxflow@live.com using a GD25Q16BSIG
 - Catalyst CAT28F512
   Mark erase and write as known bad (not implemented)

Miscellaneous:
 - Various spelling corrections by Daniele Forsi.
 - Added and refined a bunch of chips originally investigated by Carl-Daniel.
 - Marked the ARM-USB-OCD-H programmer as tested
   (reported by Ruud Schramp).
 - Tiny other stuff.

Corresponding to flashrom svn r1839.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
diff --git a/Documentation/serprog-protocol.txt b/Documentation/serprog-protocol.txt
index 58f4417..6b7e7e3 100644
--- a/Documentation/serprog-protocol.txt
+++ b/Documentation/serprog-protocol.txt
@@ -74,7 +74,7 @@
 		Send and receive bytes via SPI.
 		Maximum slen is Q_WRNMAXLEN in case Q_BUSTYPE returns SPI only or S_BUSTYPE was used
 		to set SPI exclusively before. Same for rlen and Q_RDNMAXLEN.
-		This operation is immediate, meaning it doesnt use the operation buffer.
+		This operation is immediate, meaning it doesn't use the operation buffer.
 	0x14 (S_SPI_FREQ):
 		Set the SPI clock frequency. The 32-bit value indicates the
 		requested frequency in Hertz. Value 0 is reserved and should