tools: Update openrisc toolchain information

Since commit 87da2690ab81b5f29f83dc85c55f933e6ef414bc
"openrisc: updating build tools naming convention", openrisc
kernel.org toolchain is out of date and cannot build U-Boot.
Update buildman and moveconfig tools to refer to the new one.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/tools/buildman/README b/tools/buildman/README
index 66502af..6f41008 100644
--- a/tools/buildman/README
+++ b/tools/buildman/README
@@ -157,7 +157,7 @@
 x86: i386
 blackfin: bfin
 nds32: nds32le
-openrisc: or32
+openrisc: or1k
 
 
 This selects the available toolchain paths. Add the base directory for
@@ -362,6 +362,10 @@
 sh: http://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu/
     renesas-4.4-200-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
 
+Note openrisc kernel.org toolchain is out of date, download latest one from
+http://opencores.org/or1k/OpenRISC_GNU_tool_chain#Prebuilt_versions, eg:
+ftp://ocuser:ocuser@openrisc.opencores.org/toolchain/gcc-or1k-elf-4.8.1-x86.tar.bz2.
+
 Buildman should now be set up to use your new toolchain.
 
 At the time of writing, U-Boot has these architectures: