egl/wayland: do not wrap header inclusion in extern "C"

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>

src/egl/wayland/wayland-egl/wayland-egl-priv.h

@@ -1,10 +1,6 @@
 #ifndef _WAYLAND_EGL_PRIV_H
 #define _WAYLAND_EGL_PRIV_H
 
-#ifdef  __cplusplus
-extern "C" {
-#endif
-
 /* GCC visibility */
 #if defined(__GNUC__)
 #define WL_EGL_EXPORT __attribute__ ((visibility("default")))
@@ -14,6 +10,10 @@ extern "C" {
 
 #include <wayland-client.h>
 
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
 struct wl_egl_window {
 	struct wl_surface *surface;