[XAM] Added XamProfileOpen support and xam_profile.cc dedicated file for XamProfile exports

- Modified implementation of MountProfile to allow custom mount paths

src/xenia/kernel/xam/xam_profile.cc

@@ -0,0 +1,31 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2025 Xenia Canary. All rights reserved.                          *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include "xenia/kernel/kernel_state.h"
+#include "xenia/kernel/util/shim_utils.h"
+#include "xenia/kernel/xam/xam_private.h"
+
+namespace xe {
+namespace kernel {
+namespace xam {
+
+dword_result_t XamProfileOpen_entry(qword_t xuid, lpstring_t mount_path) {
+  const bool result =
+      kernel_state()->xam_state()->profile_manager()->MountProfile(
+          xuid, mount_path.value());
+
+  return result ? X_ERROR_SUCCESS : X_ERROR_INVALID_PARAMETER;
+}
+DECLARE_XAM_EXPORT1(XamProfileOpen, kNone, kImplemented);
+
+}  // namespace xam
+}  // namespace kernel
+}  // namespace xe
+
+DECLARE_XAM_EMPTY_REGISTER_EXPORTS(Profile);