dm: treewide: Rename auto_alloc_size members to be shorter

This construct is quite long-winded. In earlier days it made some sense
since auto-allocation was a strange concept. But with driver model now
used pretty universally, we can shorten this to 'auto'. This reduces
verbosity and makes it easier to read.

Coincidentally it also ensures that every declaration is on one line,
thus making dtoc's job easier.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/mtd/nand/raw/tegra_nand.c b/drivers/mtd/nand/raw/tegra_nand.c
index b9f5bdd..797fc23 100644
--- a/drivers/mtd/nand/raw/tegra_nand.c
+++ b/drivers/mtd/nand/raw/tegra_nand.c
@@ -990,7 +990,7 @@
 	.id = UCLASS_MTD,
 	.of_match = tegra_nand_dt_ids,
 	.probe = tegra_probe,
-	.priv_auto_alloc_size = sizeof(struct tegra_nand_info),
+	.priv_auto	= sizeof(struct tegra_nand_info),
 };
 
 void board_nand_init(void)