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/mtd/spi/sf-uclass.c b/drivers/mtd/spi/sf-uclass.c
index 19de964..8387648 100644
--- a/drivers/mtd/spi/sf-uclass.c
+++ b/drivers/mtd/spi/sf-uclass.c
@@ -46,7 +46,7 @@
 
 void spi_flash_free(struct spi_flash *flash)
 {
-	device_remove(flash->spi->dev);
+	device_remove(flash->spi->dev, DM_REMOVE_NORMAL);
 }
 
 int spi_flash_probe_bus_cs(unsigned int busnum, unsigned int cs,