egl: move eglGetSyncAttrib() fallback to eglapi.c

Signed-off-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
diff --git a/src/egl/main/eglapi.c b/src/egl/main/eglapi.c
index 60f59bb..cfc61db 100644
--- a/src/egl/main/eglapi.c
+++ b/src/egl/main/eglapi.c
@@ -2112,7 +2112,11 @@
    assert(disp->Extensions.KHR_reusable_sync ||
           disp->Extensions.KHR_fence_sync ||
           disp->Extensions.ANDROID_native_fence_sync);
-   ret = drv->API.GetSyncAttrib(drv, disp, s, attribute, value);
+
+   if (drv->API.GetSyncAttrib)
+      ret = drv->API.GetSyncAttrib(drv, disp, s, attribute, value);
+   else
+      ret = _eglGetSyncAttrib(drv, disp, s, attribute, value);
 
    RETURN_EGL_EVAL(disp, ret);
 }