mediatek: mt8192: add sys_cirq driver

1.add sys_cirq driver
2.add gic api for cirq

Change-Id: Ie6802d6ddcf7dde3412a050736dfdc85f97cb51b
diff --git a/plat/mediatek/mt8192/include/mt_gic_v3.h b/plat/mediatek/mt8192/include/mt_gic_v3.h
index 34ba8a7..c4ab44f 100644
--- a/plat/mediatek/mt8192/include/mt_gic_v3.h
+++ b/plat/mediatek/mt8192/include/mt_gic_v3.h
@@ -21,4 +21,7 @@
 void mt_gic_rdistif_restore_all(void);
 void gic_sgi_save_all(void);
 void gic_sgi_restore_all(void);
+uint32_t mt_irq_get_pending(uint32_t irq);
+void mt_irq_set_pending(uint32_t irq);
+
 #endif /* MT_GIC_V3_H */