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/arch/arm/mach-omap2/omap3/board.c b/arch/arm/mach-omap2/omap3/board.c
index f08c8ab..6ffedd1 100644
--- a/arch/arm/mach-omap2/omap3/board.c
+++ b/arch/arm/mach-omap2/omap3/board.c
@@ -38,7 +38,7 @@
 #if CONFIG_IS_ENABLED(DM_GPIO)
 #if !CONFIG_IS_ENABLED(OF_CONTROL)
 /* Manually initialize GPIO banks when OF_CONTROL doesn't */
-static const struct omap_gpio_platdata omap34xx_gpio[] = {
+static const struct omap_gpio_plat omap34xx_gpio[] = {
 	{ 0, OMAP34XX_GPIO1_BASE },
 	{ 1, OMAP34XX_GPIO2_BASE },
 	{ 2, OMAP34XX_GPIO3_BASE },