configure: Also update libweston version to match weston
diff --git a/configure.ac b/configure.ac
index 6398b2a..f35e887 100644
--- a/configure.ac
+++ b/configure.ac
@@ -5,7 +5,7 @@
           [weston_major_version.weston_minor_version.weston_micro_version])
 m4_define([libweston_major_version], [1])
 m4_define([libweston_minor_version], [12])
-m4_define([libweston_patch_version], [0])
+m4_define([libweston_patch_version], [90])
 
 AC_PREREQ([2.64])
 AC_INIT([weston],