configure.ac: bump libweston version to match weston

This bump is required for the following patch that adds strict version
consistency checking between weston and libweston.

This bumps libweston major from 0 to 1. All libweston users need to
adapt. This major bump would have to be made on the 1.11.91 release
anyway.

Cc: Giulio Camuffo <giuliocamuffo@gmail.com>
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Reviewed-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Emil Velikov <emil.velikov@collabora.com>

configure.ac

@@ -3,9 +3,9 @@ m4_define([weston_minor_version], [11])
 m4_define([weston_micro_version], [90])
 m4_define([weston_version],
           [weston_major_version.weston_minor_version.weston_micro_version])
-m4_define([libweston_major_version], [0])
-m4_define([libweston_minor_version], [0])
-m4_define([libweston_patch_version], [0])
+m4_define([libweston_major_version], [1])
+m4_define([libweston_minor_version], [11])
+m4_define([libweston_patch_version], [90])
 
 AC_PREREQ([2.64])
 AC_INIT([weston],