drm/amd/display: Assume 32 bpp cursor in DML21

[Why]
Cursor size can change dynamically at runtime without re-validation,
so DML should calculate with the max size cursor to cover all cases.

Reviewed-by: Dillon Varone <[e-mail]>
Signed-off-by: Joshua Aberback <[e-mail]>
Signed-off-by: Wayne Lin <[e-mail]>
Tested-by: Daniel Wheeler <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/display/dc/dml2/dml21/dml21_translation_helper.c

···
 	const struct scaler_data *scaler_data = get_scaler_data_for_plane(dml_ctx, plane_state, context);
 	struct dc_stream_state *stream = context->streams[stream_index];
 
-	if (stream->cursor_attributes.color_format == CURSOR_MODE_MONO)
-		plane->cursor.cursor_bpp = 2;
-	else if (stream->cursor_attributes.color_format == CURSOR_MODE_COLOR_1BIT_AND
-		|| stream->cursor_attributes.color_format == CURSOR_MODE_COLOR_PRE_MULTIPLIED_ALPHA
-		|| stream->cursor_attributes.color_format == CURSOR_MODE_COLOR_UN_PRE_MULTIPLIED_ALPHA) {
-		plane->cursor.cursor_bpp = 32;
-	} else if (stream->cursor_attributes.color_format == CURSOR_MODE_COLOR_64BIT_FP_PRE_MULTIPLIED
-		|| stream->cursor_attributes.color_format == CURSOR_MODE_COLOR_64BIT_FP_UN_PRE_MULTIPLIED) {
-		plane->cursor.cursor_bpp = 64;
-	} else
-		plane->cursor.cursor_bpp = 32;
-
+	plane->cursor.cursor_bpp = 32;
 	plane->cursor.cursor_width = 256;
 	plane->cursor.num_cursors = 1;