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>

include/sdhci.h

@@ -440,7 +440,7 @@ static inline u8 sdhci_readb(struct sdhci_host *host, int reg)
  * ...
  *
  * Inside U_BOOT_DRIVER():
- *	.platdata_auto_alloc_size = sizeof(struct msm_sdhc_plat),
+ *	.platdata_auto	= sizeof(struct msm_sdhc_plat),
  *
  * To access platform data:
  *	struct msm_sdhc_plat *plat = dev_get_platdata(dev);