mediatek: mt8192: Initialize delay_timer

Init delay_timer for the use of delay functions

Change-Id: I35aefd7515bb9259634c8b6bc37d8c74da96e8f1
diff --git a/plat/mediatek/mt8192/bl31_plat_setup.c b/plat/mediatek/mt8192/bl31_plat_setup.c
index 4d2f5d2..2a0e131 100644
--- a/plat/mediatek/mt8192/bl31_plat_setup.c
+++ b/plat/mediatek/mt8192/bl31_plat_setup.c
@@ -11,6 +11,7 @@
 #include <common/bl_common.h>
 #include <common/debug.h>
 #include <common/desc_image_load.h>
+#include <drivers/generic_delay_timer.h>
 #include <drivers/ti/uart/uart_16550.h>
 #include <lib/coreboot.h>
 
@@ -88,6 +89,7 @@
 
 	plat_mt8192_gpio_init();
 	mt_systimer_init();
+	generic_delay_timer_init();
 }
 
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