drm/panel: khadas-ts050: make ts050[v2]_panel_data static

make ts050_panel_data and ts050v2_panel_data static because they
are only used in drivers/gpu/drm/panel/panel-khadas-ts050.c,
and fix the following sparse warnings:

drivers/gpu/drm/panel/panel-khadas-ts050.c:620:32:
sparse: warning: symbol 'ts050_panel_data' was not declared. Should it be static?
drivers/gpu/drm/panel/panel-khadas-ts050.c:625:32:
sparse: warning: symbol 'ts050v2_panel_data' was not declared. Should it be static?

No functional changes intended.

Signed-off-by: Min-Hua Chen <[e-mail]>
Reviewed-by: Neil Armstrong <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Neil Armstrong <[e-mail]>
Link: https://patchwork.freedesktop.org/patch/msgid/[e-mail]

drivers/gpu/drm/panel/panel-khadas-ts050.c

···
 	{0xd4, {0x04}, 0x01}, /* RGBMIPICTRL: VSYNC front porch = 4 */
 };
 
-struct khadas_ts050_panel_data ts050_panel_data = {
+static struct khadas_ts050_panel_data ts050_panel_data = {
 	.init_code = (struct khadas_ts050_panel_cmd *)ts050_init_code,
 	.len = ARRAY_SIZE(ts050_init_code)
 };
 
-struct khadas_ts050_panel_data ts050v2_panel_data = {
+static struct khadas_ts050_panel_data ts050v2_panel_data = {
 	.init_code = (struct khadas_ts050_panel_cmd *)ts050v2_init_code,
 	.len = ARRAY_SIZE(ts050v2_init_code)
 };