OMAPDSS: Remove passive matrix LCD support (part 3)

Remove omap_lcd_display_type enum

The enum omap_lcd_display_type is used to configure the lcd display type in
DISPC. Remove this enum and always set display type to TFT by creating function
dss_mgr_set_lcd_type_tft().

Signed-off-by: Archit Taneja <archit@ti.com>
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index d07ecc4..1a369de 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -40,8 +40,7 @@
 	dispc_mgr_set_io_pad_mode(DSS_IO_PAD_MODE_BYPASS);
 	dispc_mgr_enable_stallmode(dssdev->manager->id, false);
 
-	dispc_mgr_set_lcd_display_type(dssdev->manager->id,
-			OMAP_DSS_LCD_DISPLAY_TFT);
+	dispc_mgr_set_lcd_type_tft(dssdev->manager->id);
 
 	dispc_mgr_set_tft_data_lines(dssdev->manager->id, 24);
 	dispc_lcd_enable_signal_polarity(1);