gcc: add patch to disable texinfo when texinfo is 5.0 or newer

* this is needed only for 4.7 series, newer works fine with texinfo-5*

[YOCTO #3947]

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>