dm: treewide: Rename ..._platdata variables to just ..._plat

Try to maintain some consistency between these variables by using _plat as
a suffix for them.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/scsi.h b/include/scsi.h
index 96cb726..90cec99 100644
--- a/include/scsi.h
+++ b/include/scsi.h
@@ -162,14 +162,14 @@
 #define SCSI_WRITE_SAME	0x41		/* Write Same (O) */
 
 /**
- * struct scsi_platdata - stores information about SCSI controller
+ * struct scsi_plat - stores information about SCSI controller
  *
  * @base: Controller base address
  * @max_lun: Maximum number of logical units
  * @max_id: Maximum number of target ids
  * @max_bytes_per_req: Maximum number of bytes per read/write request
  */
-struct scsi_platdata {
+struct scsi_plat {
 	unsigned long base;
 	unsigned long max_lun;
 	unsigned long max_id;