intltool: include intltool.m4 and add missing rdepends

intltool: include intltool.m4 and add missing rdepends

- include /usr/share/aclocal/intltool.m4 into the intltool
package (the files from intltool-dev must be included into the
main package, as intltool is a development tool)
- add missing rdepends: gettext-dev, libxml-parser-perl

[YOCTO #2597]

(From OE-Core rev: f5f3d3fb14e983af114afc6425dc339053927f25)

Signed-off-by: Constantin Musca <constantinx.musca@intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>