revert commit 11865: the book has really been updated to linux-5.6.15

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@11866 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

chapter01/changelog.xml

@@ -62,6 +62,10 @@
           <para>[bdubbs] - Update to bison-3.6.2. Fixes
           <ulink url="&lfs-ticket-root;4657">#4657</ulink>.</para>
         </listitem>
+        <listitem>
+          <para>[pierre] - Update to linux-5.6.15. Fixes
+          <ulink url="&lfs-ticket-root;4658">#4658</ulink>.</para>
+        </listitem>
       </itemizedlist>
     </listitem>