move frv docs one level up

My first guess for "fujitsu" was it might be related to the
fujitsu-laptop.c driver...

Move the frv directory one level up since frv is the name of the
architecture in the Linux kernel.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index e3f965c..88f5cea 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -79,7 +79,7 @@
 	  Setting this option causes the FR-V atomic operations to be mostly
 	  implemented out-of-line.
 
-	  See Documentation/fujitsu/frv/atomic-ops.txt for more information.
+	  See Documentation/frv/atomic-ops.txt for more information.
 
 config HIGHMEM
 	bool "High memory support"