drm/bridge: Remove redundant i2c_client in anx7625/it6505

These two drivers embed a i2c_client in their private driver data, but
only strict device is actually needed. Replace the i2c_client reference
with a struct device one.
Signed-off-by: Pin-yen Lin <treapking@chromium.org>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230718110407.1005200-1-wenst@chromium.org

drivers/gpu/drm/bridge/analogix/anx7625.h

@@ -458,7 +458,7 @@ struct anx7625_data {
 	int hdcp_cp;
 	/* Lock for work queue */
 	struct mutex lock;
-	struct i2c_client *client;
+	struct device *dev;
 	struct anx7625_i2c_client i2c;
 	struct i2c_client *last_client;
 	struct timer_list hdcp_timer;