cros_ec: Update the cros_ec keyboard driver to livetree

Update this driver and key_matrix to support a live device tree.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/input/tegra-kbc.c b/drivers/input/tegra-kbc.c
index 836aba1..cb56957 100644
--- a/drivers/input/tegra-kbc.c
+++ b/drivers/input/tegra-kbc.c
@@ -290,7 +290,6 @@
 	struct keyboard_priv *uc_priv = dev_get_uclass_priv(dev);
 	struct stdio_dev *sdev = &uc_priv->sdev;
 	struct input_config *input = &uc_priv->input;
-	int node = dev_of_offset(dev);
 	int ret;
 
 	priv->kbc = (struct kbc_tegra *)devfdt_get_addr(dev);
@@ -306,7 +305,7 @@
 		debug("%s: Could not init key matrix: %d\n", __func__, ret);
 		return ret;
 	}
-	ret = key_matrix_decode_fdt(&priv->matrix, gd->fdt_blob, node);
+	ret = key_matrix_decode_fdt(dev, &priv->matrix);
 	if (ret) {
 		debug("%s: Could not decode key matrix from fdt: %d\n",
 		      __func__, ret);