mediatek: mt8183: pass platform parameters

Add plat parameter structs to support BL2 to pass
variable-length, variable-type parameters to BL31.
The parameters are structured as a link list.
During BL31 setup time, we traverse the list to process
each parameter.

Signed-off-by: kenny liang <kenny.liang@mediatek.com>
Change-Id: Ie84cfc9606656fb1d2780a68cadf27e09afa6628
diff --git a/plat/mediatek/mt8183/bl31_plat_setup.c b/plat/mediatek/mt8183/bl31_plat_setup.c
index f20e8ac..ea39ff6 100644
--- a/plat/mediatek/mt8183/bl31_plat_setup.c
+++ b/plat/mediatek/mt8183/bl31_plat_setup.c
@@ -18,6 +18,7 @@
 #include <mtk_plat_common.h>
 #include <mtspmc.h>
 #include <plat_debug.h>
+#include <plat_params.h>
 #include <plat_private.h>
 #include <platform_def.h>
 #include <scu.h>
@@ -74,6 +75,8 @@
 {
 	static console_16550_t console;
 
+	params_early_setup(arg1);
+
 	console_16550_register(UART0_BASE, UART_CLOCK, UART_BAUDRATE, &console);
 
 	NOTICE("MT8183 bl31_setup\n");