arm-trusted-firmware-mediatek: fix hang on reboot on MT7622

With recent updates of TF-A the previously already fixed bug slipped
back into the source tree. Again, reorder bl2 init for MT7622 and
initialize WDT only after DRAM init has completed to avoid the
notorious hang.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 948ad2ec7a)

package/boot/arm-trusted-firmware-mediatek/Makefile

@@ -9,7 +9,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=arm-trusted-firmware-mediatek
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=https://github.com/mtk-openwrt/arm-trusted-firmware.git

package/boot/arm-trusted-firmware-mediatek/patches/002-mt7622-move-wdt-init-after-dram-init.patch

@@ -0,0 +1,28 @@
+From 9e8cb08bc64530e7511b86a131cfad1ae0199586 Mon Sep 17 00:00:00 2001
+From: Daniel Golle <daniel@makrotopia.org>
+Date: Sun, 10 Sep 2023 23:35:47 +0100
+Subject: [PATCH] mt7622: move wdt init after dram init
+
+resolves hang on reboot
+---
+ plat/mediatek/mt7622/bl2/bl2_plat_init.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/plat/mediatek/mt7622/bl2/bl2_plat_init.c
++++ b/plat/mediatek/mt7622/bl2/bl2_plat_init.c
+@@ -40,7 +40,6 @@ bool plat_is_my_cpu_primary(void)
+ const struct initcall bl2_initcalls[] = {
+ 	INITCALL(plat_mt_cpuxgpt_init),
+ 	INITCALL(generic_delay_timer_init),
+-	INITCALL(mtk_wdt_init),
+ 	INITCALL(mtk_print_cpu),
+ 	INITCALL(mtk_pin_init),
+ #ifndef IMAGE_BL2PL
+@@ -49,6 +48,7 @@ const struct initcall bl2_initcalls[] =
+ 	INITCALL(mtk_pwrap_init),
+ 	INITCALL(mtk_pmic_init),
+ 	INITCALL(mtk_mem_init),
++	INITCALL(mtk_wdt_init),
+ 
+ 	INITCALL(NULL)
+ };