media: cadence: increase buffer size in csi2tx_get_resources()

Fixes this compiler warning:

drivers/media/platform/cadence/cdns-csi2tx.c: In function 'csi2tx_get_resources':
drivers/media/platform/cadence/cdns-csi2tx.c:485:63: warning: '%u' directive output may be truncated writing between 1 and 10 bytes into a region of size 8 [-Wformat-truncation=]
  485 |                 snprintf(clk_name, sizeof(clk_name), "pixel_if%u_clk", i);
      |                                                               ^~
drivers/media/platform/cadence/cdns-csi2tx.c:485:54: note: directive argument in the range [0, 4294967294]
  485 |                 snprintf(clk_name, sizeof(clk_name), "pixel_if%u_clk", i);
      |                                                      ^~~~~~~~~~~~~~~~
drivers/media/platform/cadence/cdns-csi2tx.c:485:17: note: 'snprintf' output between 14 and 23 bytes into a destination of size 16
  485 |                 snprintf(clk_name, sizeof(clk_name), "pixel_if%u_clk", i);
      |                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>

drivers/media/platform/cadence/cdns-csi2tx.c

@@ -480,7 +480,7 @@ static int csi2tx_get_resources(struct csi2tx_priv *csi2tx,
 	csi2tx->has_internal_dphy = !!(dev_cfg & CSI2TX_DEVICE_CONFIG_HAS_DPHY);
 
 	for (i = 0; i < csi2tx->max_streams; i++) {
-		char clk_name[16];
+		char clk_name[23];
 
 		snprintf(clk_name, sizeof(clk_name), "pixel_if%u_clk", i);
 		csi2tx->pixel_clk[i] = devm_clk_get(&pdev->dev, clk_name);