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/serial/serial_pic32.c b/drivers/serial/serial_pic32.c
index a492063..5d1dbe7 100644
--- a/drivers/serial/serial_pic32.c
+++ b/drivers/serial/serial_pic32.c
@@ -178,7 +178,7 @@
 	.of_match	= pic32_uart_ids,
 	.probe		= pic32_uart_probe,
 	.ops		= &pic32_uart_ops,
-	.priv_auto_alloc_size = sizeof(struct pic32_uart_priv),
+	.priv_auto	= sizeof(struct pic32_uart_priv),
 };
 
 #ifdef CONFIG_DEBUG_UART_PIC32