docs: fix locations of several documents that got moved

The previous patch renamed several files that are cross-referenced
along the Kernel documentation. Adjust the links to point to
the right places.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/Documentation/DocBook/kernel-hacking.tmpl b/Documentation/DocBook/kernel-hacking.tmpl
index 2a27227..da5c087 100644
--- a/Documentation/DocBook/kernel-hacking.tmpl
+++ b/Documentation/DocBook/kernel-hacking.tmpl
@@ -1208,8 +1208,8 @@
    
    <listitem>
     <para>
-     Finally, don't forget to read <filename>Documentation/SubmittingPatches</filename>
-     and possibly <filename>Documentation/SubmittingDrivers</filename>.
+     Finally, don't forget to read <filename>Documentation/process/submitting-patches.rst</filename>
+     and possibly <filename>Documentation/process/submitting-drivers.rst</filename>.
     </para>
    </listitem>
   </itemizedlist>