libeet: Build depends on automake and libtool

libeet: Build depends on automake and libtool

There seems to be a typo, likely introduced by me,
such that the libtool dependancy was an alternate to automake.

If you don't have automake instlled at configure time, then
the following error pops up on Debian unstable.

configure.in:19: error: possibly undefined macro: AC_LIBTOOL_WIN32_DLL
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.

git-svn-id: http://svn.enlightenment.org/svn/e/trunk/e17/libs/eet@33772 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33