drm/stm: dsi: Rename driver name

Rename the driver name from "dw_mipi_dsi-stm" to
"stm32-display-dsi" for a better readability
in /sys/bus/platform/drivers entries.

Signed-off-by: Philippe Cornu <philippe.cornu@st.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/1509012290-16906-1-git-send-email-philippe.cornu@st.com

drivers/gpu/drm/stm/dw_mipi_dsi-stm.c

@@ -342,7 +342,7 @@ static struct platform_driver dw_mipi_dsi_stm_driver = {
 	.remove		= dw_mipi_dsi_stm_remove,
 	.driver		= {
 		.of_match_table = dw_mipi_dsi_stm_dt_ids,
-		.name	= "dw_mipi_dsi-stm",
+		.name	= "stm32-display-dsi",
 	},
 };