The APC patch adds the APC extension to the source tree. However,
when it was selected nothing happens since the extension wasn't
'registered'. This is what a 'buildconf' run usually does.
This however needs version 2.13 of autoconf. So instead of
requiring this (additional) autoconf version on the build system
the files changed are included in an additional patch.
git-svn-id: svn://svn.openwrt.org/openwrt/packages@26824 3c298f89-4303-0410-b956-a3cf2f4a3e73
