ppc: Remove PCIPPC2 and PCIPPC6 boards

These boards seem to be unmaintained for quite some time. So lets
remove support for them completely. This also cleans up some
common drivers/files.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Guillaume Alexandre <guillaume.alexandre@gespac.ch>
Acked-by: Wolfgang Denk <wd@denx.de>
diff --git a/doc/README.scrapyard b/doc/README.scrapyard
index 2b868e6..7d73ea0 100644
--- a/doc/README.scrapyard
+++ b/doc/README.scrapyard
@@ -89,3 +89,5 @@
 adsvix	ARM	PXA27x	7610db1   2008-07-30	Adrian Filipi <adrian.filipi@eurotech.com>
 R5200	ColdFire	48ead7a   2008-03-31	Zachary P. Landau <zachary.landau@labxtechnologies.com>
 CPCI440	powerpc	440GP	b568fd2   2007-12-27	Matthias Fuchs <matthias.fuchs@esd-electronics.com>
+PCIPPC2	powerpc	MPC740/MPC750 -	  -		Wolfgang Denk <wd@denx.de>
+PCIPPC6	powerpc	MPC740/MPC750 -	  -		Wolfgang Denk <wd@denx.de>
diff --git a/doc/driver-model/UDM-pci.txt b/doc/driver-model/UDM-pci.txt
index b65e9ea..c2cf2d5 100644
--- a/doc/driver-model/UDM-pci.txt
+++ b/doc/driver-model/UDM-pci.txt
@@ -240,10 +240,6 @@
     ----------------
       Standard driver, uses indirect functions.
 
-    8) pcippc2/cpc710_pci.c
-    -----------------------
-      Standard driver, uses indirect functions, has two busses.
-
     9) Marvell/db64360/pci.c
     ------------------------
       Standard driver, uses dword for read/write ops, has two busses.
diff --git a/doc/driver-model/UDM-watchdog.txt b/doc/driver-model/UDM-watchdog.txt
index 271bd26..7db3286 100644
--- a/doc/driver-model/UDM-watchdog.txt
+++ b/doc/driver-model/UDM-watchdog.txt
@@ -292,11 +292,6 @@
   Only function proxy call. Code cleanup needed.
 
 
-  45) board/pcippc2/pcippc2.c
-  ---------------------------
-  The driver is standard HW watchdog. Simple conversion is possible.
-
-
   46) board/pcs440ep/pcs440ep.c
   -----------------------------
   The driver is standard HW watchdog. Simple conversion is possible.