Fix the ABI version check.

The EGL_EXTERNAL_PLATFORM_VERSION_CHECK macro checks whether the given
version is older than EGL_EXTERNAL_PLATFORM_VERSION_MAJOR/MINOR, not
newer.

That's correct for using it in EGL_EXTERNAL_PLATFORM_HAS, since it'll
check whether the build-time version supports a given feature, but it's
wrong for checking the ABI version that the driver reports.

Instead, use EGL_EXTERNAL_PLATFORM_VERSION_CMP.

src/wayland-external-exports.c

@@ -96,7 +96,8 @@ EGLBoolean loadEGLExternalPlatform(int major, int minor,
                                    EGLExtPlatform *platform)
 {
     if (!platform ||
-        !EGL_EXTERNAL_PLATFORM_VERSION_CHECK(major, minor)) {
+        !EGL_EXTERNAL_PLATFORM_VERSION_CMP(major, minor,
+            WAYLAND_EXTERNAL_VERSION_MAJOR, WAYLAND_EXTERNAL_VERSION_MINOR)) {
         return EGL_FALSE;
     }