drm/tilcdc: Rename tilcdc_external to tilcdc_encoder

The tilcdc_external module describes the encoder part of the tilcdc
driver. Rename it to tilcdc_encoder for better clarity and to make
the naming more consistent with DRM subsystem conventions, where
encoder-related files typically use "encoder" in their names.

Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com>
Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-12-5a44d2aa3f6f@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

drivers/gpu/drm/tilcdc/Makefile

@@ -6,7 +6,7 @@ endif
 tilcdc-y := \
 	tilcdc_plane.o \
 	tilcdc_crtc.o \
-	tilcdc_external.o \
+	tilcdc_encoder.o \
 	tilcdc_drv.o
 
 obj-$(CONFIG_DRM_TILCDC)	+= tilcdc.o

drivers/gpu/drm/tilcdc/tilcdc_drv.c

@@ -26,7 +26,7 @@
 
 
 #include "tilcdc_drv.h"
-#include "tilcdc_external.h"
+#include "tilcdc_encoder.h"
 #include "tilcdc_regs.h"
 
 enum tilcdc_variant {

drivers/gpu/drm/tilcdc/tilcdc_encoder.c

@@ -12,7 +12,7 @@
 #include <drm/drm_simple_kms_helper.h>
 
 #include "tilcdc_drv.h"
-#include "tilcdc_external.h"
+#include "tilcdc_encoder.h"
 
 static
 struct drm_connector *tilcdc_encoder_find_connector(struct drm_device *ddev,