wayland-egl: bump the version number to 18.1.0

Seems like I was overoptimistic with my earlier assumption, namely:

"... 17.3.x should be the last version that ships the library."

Mesa 18.0.0 and its wayland-egl is about to be released any time soon,
so bump the number since it must no be smaller. As soon as we get
a wayland release I'll drop the Mesa copy but for now.

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Daniel Stone <daniels@collabora.com>

egl/wayland-egl.pc.in

diff --git a/egl/wayland-egl.pc.in b/egl/wayland-egl.pc.in
index 943442e..2e2d4c4 100644
--- a/egl/wayland-egl.pc.in
+++ b/egl/wayland-egl.pc.in
@@ -5,7 +5,7 @@
 
 Name: wayland-egl
 Description: Frontend wayland-egl library
-Version: 17.4.0
+Version: 18.1.0
 Requires: wayland-client
 Libs: -L${libdir} -lwayland-egl
 Cflags: -I${includedir}