wayland: Bump minimum requirement to wayland-client 1.18 or newer

configure

@@ -20572,7 +20572,7 @@ $as_echo_n "checking for Wayland support... " >&6; }
         video_wayland=no
         if  test x$video_opengl_egl = xyes && \
             test x$video_opengles_v2 = xyes; then
-            if $PKG_CONFIG --exists wayland-client wayland-scanner wayland-egl wayland-cursor egl 'xkbcommon >= 0.5.0'; then
+            if $PKG_CONFIG --exists 'wayland-client >= 1.18' wayland-scanner wayland-egl wayland-cursor egl 'xkbcommon >= 0.5.0'; then
                 WAYLAND_CFLAGS=`$PKG_CONFIG --cflags wayland-client wayland-egl wayland-cursor xkbcommon`
                 WAYLAND_LIBS=`$PKG_CONFIG --libs wayland-client wayland-egl wayland-cursor xkbcommon`
                 WAYLAND_SCANNER=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`