mediatek: mt8195: Initialize delay_timer

Initialize delay_timer for delay functions.

Change-Id: Ib554135151f8b5c642b5a6511c942bb9efc0a47f
diff --git a/plat/mediatek/mt8195/platform.mk b/plat/mediatek/mt8195/platform.mk
index 83545b7..1eee15a 100644
--- a/plat/mediatek/mt8195/platform.mk
+++ b/plat/mediatek/mt8195/platform.mk
@@ -23,6 +23,8 @@
 
 
 BL31_SOURCES += common/desc_image_load.c                              \
+                drivers/delay_timer/delay_timer.c                     \
+                drivers/delay_timer/generic_delay_timer.c             \
                 drivers/ti/uart/aarch64/16550_console.S               \
                 lib/bl_aux_params/bl_aux_params.c                     \
                 lib/cpus/aarch64/cortex_a55.S                         \