amex/amex.c: Add amex_hook_init() helper

amex/amex.c

@@ -0,0 +1,15 @@
+#include "amex/amex.h"
+#include "amex/ds.h"
+#include "amex/eeprom.h"
+#include "amex/gpio.h"
+#include "amex/jvs.h"
+#include "amex/sram.h"
+
+void amex_hook_init(void)
+{
+    ds_hook_init();
+    eeprom_hook_init();
+    gpio_hook_init();
+    jvs_hook_init();
+    sram_hook_init();
+}

amex/amex.h

@@ -0,0 +1,3 @@
+#pragma once
+
+void amex_hook_init(void);

amex/meson.build

@@ -7,6 +7,8 @@ amex_lib = static_library(
         capnhook.get_variable('hook_dep'),
     ],
     sources : [
+        'amex.c',
+        'amex.h',
         'ds.c',
         'ds.h',
         'eeprom.c',