feat(plat/mediatek/mt8195): add SPM suspend driver

Support DRAM/MAINPLL/26M off when system suspend.

Signed-off-by: Edward-JW Yang <edward-jw.yang@mediatek.corp-partner.google.com>
Change-Id: Ib8502f9b0b4e47aa405e5449f0b6d483bd3f5d77
diff --git a/plat/mediatek/mt8195/bl31_plat_setup.c b/plat/mediatek/mt8195/bl31_plat_setup.c
index eaff349..39c1918 100644
--- a/plat/mediatek/mt8195/bl31_plat_setup.c
+++ b/plat/mediatek/mt8195/bl31_plat_setup.c
@@ -17,6 +17,7 @@
 
 /* Platform Includes */
 #include <mt_gic_v3.h>
+#include <mt_spm.h>
 #include <mt_timer.h>
 #include <mtgpio.h>
 #include <plat_params.h>
@@ -90,6 +91,7 @@
 	mt_gpio_init();
 	mt_systimer_init();
 	generic_delay_timer_init();
+	spm_boot_init();
 }
 
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