FDT: Fix DTC repository references

The Device Tree Compiler (DTC) used to have its master
repository located on jdl.com.  While it is still there,
its official, new, shiny location is on kernel.org here:

    git://git.kernel.org/pub/scm/utils/dtc/dtc.git

Update a few references to point there instead.

Signed-off-by: Jon Loeliger <jdl@jdl.com>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/doc/README.fdt-control b/doc/README.fdt-control
index 86bae68..0ceebe7 100644
--- a/doc/README.fdt-control
+++ b/doc/README.fdt-control
@@ -66,11 +66,11 @@
 
 To use this feature you will need to get the device tree compiler here:
 
-	git://jdl.com/software/dtc.git
+	git://git.kernel.org/pub/scm/utils/dtc/dtc.git
 
 For example:
 
-	$ git clone git://jdl.com/software/dtc.git
+	$ git clone git://git.kernel.org/pub/scm/utils/dtc/dtc.git
 	$ cd dtc
 	$ make
 	$ sudo make install