Add support for weston 13 protocols

Weston 12 was released recently and the weston development branch is
now using libweston-13-protocols.

Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
(cherry picked from commit da64b4a)

platform/wayland/meson.build

@@ -48,6 +48,7 @@ wayland_protocols_path = wayland_protocols_dep.get_variable(pkgconfig: 'pkgdatad
 
 if wayland_platform_weston_protocols.length() > 0
     foreach weston_dep_name : [
+            'libweston-13-protocols',
             'libweston-12-protocols',
             'libweston-11-protocols',
             'libweston-10-protocols',