When converting from int to string, we must allow for up to 10-chars (2147483647).

Fixes the following W=1 kernel build warning(s):

 drivers/gpu/drm/imx/ipuv3/imx-ldb.c: In function ‘imx_ldb_probe’:
 drivers/gpu/drm/imx/ipuv3/imx-ldb.c:659:39: warning: ‘_sel’ directive writing 4 bytes into a region of size between 3 and 13 [-Wformat-overflow=]
 drivers/gpu/drm/imx/ipuv3/imx-ldb.c:659:17: note: ‘sprintf’ output between 8 and 18 bytes into a destination of size 16

Signed-off-by: Lee Jones <lee@kernel.org>
---
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-arm-kernel@lists.infradead.org
---
 drivers/gpu/drm/imx/ipuv3/imx-ldb.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/imx/ipuv3/imx-ldb.c b/drivers/gpu/drm/imx/ipuv3/imx-ldb.c
index c45fc8f4744d0..0404781dcd176 100644
--- a/drivers/gpu/drm/imx/ipuv3/imx-ldb.c
+++ b/drivers/gpu/drm/imx/ipuv3/imx-ldb.c
@@ -654,7 +654,7 @@ static int imx_ldb_probe(struct platform_device *pdev)
 	 * Map them all to di0_sel...di3_sel.
 	 */
 	for (i = 0; i < 4; i++) {
-		char clkname[16];
+		char clkname[18];
 
 		sprintf(clkname, "di%d_sel", i);
 		imx_ldb->clk_sel[i] = devm_clk_get(imx_ldb->dev, clkname);
-- 
2.42.0.rc1.204.g551eb34607-goog