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/doc/imx/clk/ccf.txt b/doc/imx/clk/ccf.txt
index e40ac36..f47ca88 100644
--- a/doc/imx/clk/ccf.txt
+++ b/doc/imx/clk/ccf.txt
@@ -37,7 +37,7 @@
   modify clk-uclass.c file and add there struct uc_clk_priv, which would have
   clock related members (like pointer to clk). As of this writing there is no
   such need, so to avoid extra allocations (as it can be auto allocated by
-  setting .per_device_auto_alloc_size = sizeof(struct uc_clk_priv)) the
+  setting .per_device_auto = sizeof(struct uc_clk_priv)) the
   uclass_priv stores the pointer to struct clk.
 
 * Non-CCF clocks do not have a pointer to a clock in clk->dev->priv. In the case