mediatek: mt8192: enable NS access for systimer

Enable NS access for all systimers.

Change-Id: I3693997082a1d6f09fef5a79b6cf5a91be46cb8a
diff --git a/plat/mediatek/mt8192/bl31_plat_setup.c b/plat/mediatek/mt8192/bl31_plat_setup.c
index 9a01bef..4d2f5d2 100644
--- a/plat/mediatek/mt8192/bl31_plat_setup.c
+++ b/plat/mediatek/mt8192/bl31_plat_setup.c
@@ -17,6 +17,7 @@
 /* Platform Includes */
 #include <gpio/mtgpio.h>
 #include <mt_gic_v3.h>
+#include <mt_timer.h>
 #include <plat_params.h>
 #include <plat_private.h>
 
@@ -84,7 +85,9 @@
 	/* Initialize the GIC driver, CPU and distributor interfaces */
 	mt_gic_driver_init();
 	mt_gic_init();
+
 	plat_mt8192_gpio_init();
+	mt_systimer_init();
 }
 
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