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/include/asm-frv/mem-layout.h b/include/asm-frv/mem-layout.h
index aaf2a77..8353225 100644
--- a/include/asm-frv/mem-layout.h
+++ b/include/asm-frv/mem-layout.h
@@ -39,7 +39,7 @@
 
 #ifdef CONFIG_MMU
 
-/* see Documentation/fujitsu/frv/mmu-layout.txt */
+/* see Documentation/frv/mmu-layout.txt */
 #define KERNEL_LOWMEM_START		__UL(0xc0000000)
 #define KERNEL_LOWMEM_END		__UL(0xd0000000)
 #define VMALLOC_START			__UL(0xd0000000)