forgot to added &ad-gcc-patch;

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@1291 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

Attic/appendixd/packages.xml

@@ -13,6 +13,7 @@ package quicker.</para>
 &ad-diffutils;
 &ad-fileutils;
 &ad-gcc;
+&ad-gcc-patch;
 &ad-grep;
 &ad-gzip;
 &ad-gzip-patch;