dm: core: Add flags parameter to device_remove()

This patch adds the flags parameter to device_remove() and changes all
calls to this function to provide the default value of DM_REMOVE_NORMAL
for "normal" device removal.

This is in preparation for the driver specific pre-OS (e.g. DMA
cancelling) remove support.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/spi/spi-uclass.c b/drivers/spi/spi-uclass.c
index ac17da0..c061c05 100644
--- a/drivers/spi/spi-uclass.c
+++ b/drivers/spi/spi-uclass.c
@@ -343,7 +343,7 @@
 	debug("%s: Error path, created=%d, device '%s'\n", __func__,
 	      created, dev->name);
 	if (created) {
-		device_remove(dev);
+		device_remove(dev, DM_REMOVE_NORMAL);
 		device_unbind(dev);
 	}
 
@@ -384,7 +384,7 @@
 
 void spi_free_slave(struct spi_slave *slave)
 {
-	device_remove(slave->dev);
+	device_remove(slave->dev, DM_REMOVE_NORMAL);
 	slave->dev = NULL;
 }