trivial: fix typo "for for" in multiple files

trivial: fix typo "for for" in multiple files

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/Documentation/filesystems/nfsroot.txt b/Documentation/filesystems/nfsroot.txt
index 68baddf..3ba0b94 100644
--- a/Documentation/filesystems/nfsroot.txt
+++ b/Documentation/filesystems/nfsroot.txt
@@ -105,7 +105,7 @@
 		the client address and this parameter is NOT empty only
 		replies from the specified server are accepted.
 
-		Only required for for NFS root. That is autoconfiguration
+		Only required for NFS root. That is autoconfiguration
 		will not be triggered if it is missing and NFS root is not
 		in operation.