[display] Trigger extra blanking delay during bootup. Fixes JB#47170

Originally init_done was tracked as a boolean true/false value. Later on
it was changed into a unknown/true/false tristate value. While making
these changes, the triggering condition for extra blanking delay used
immediately after bootup got broken in a way that did not manifest
itself for a long time.

Instead of waiting for init done before triggering extra blank delay,
disable the extra delay altogether if mce has been (re)started after
init done.

Signed-off-by: Simo Piiroinen <simo.piiroinen@jollamobile.com>

modules/display.c

@@ -5012,7 +5012,7 @@ static bool mdy_blanking_afterboot_delay_start_p(void)
     bool start = false;
 
     /* Bootup has not yet finished */
-    if( mdy_init_done != TRISTATE_TRUE )
+    if( mdy_init_done == TRISTATE_TRUE )
         goto DONE;
 
     /* We are booting to USER mode */