i2c: Mark instantiated device nodes with OF_POPULATE

Mark (and unmark) device nodes with the POPULATE flag as appropriate.
This is required to avoid multi probing when using I2C and device
overlays containing a mux.

Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
(cherry picked from commit 6d0a0d9ad09be16e3ca676b245643945b4bff47d)
Signed-off-by: Mark Brown <broonie@kernel.org>

Conflicts:
	drivers/i2c/i2c-core.c
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index 92588d3..780599c 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -704,8 +704,10 @@
  */
 void i2c_unregister_device(struct i2c_client *client)
 {
+#if IS_ENABLED(CONFIG_OF_DYNAMIC)
 	if (client->dev.of_node)
 		of_node_clear_flag(client->dev.of_node, OF_POPULATED);
+#endif
 	device_unregister(&client->dev);
 }
 EXPORT_SYMBOL_GPL(i2c_unregister_device);