drm/bridge: tc358775: remove unused drm_panel.h include

The file uses the panel_bridge APIs from drm_bridge.h, but no drm_panel
APIs from drm_panel.h.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Robert Foss <rfoss@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206-drm-cleanups-v1-6-93df60faa756@bootlin.com

Author: lucaceresoli

drivers/gpu/drm/bridge/tc358775.c

@@ -26,7 +26,6 @@
 #include <drm/drm_bridge.h>
 #include <drm/drm_mipi_dsi.h>
 #include <drm/drm_of.h>
-#include <drm/drm_panel.h>
 #include <drm/drm_probe_helper.h>
 
 #define FLD_VAL(val, start, end) FIELD_PREP(GENMASK(start, end), val)