ams_mitm: update for new sf semantics

stratosphere/ams_mitm/source/amsmitm_main.cpp

@@ -37,6 +37,9 @@ extern "C" {
     alignas(16) u8 __nx_exception_stack[ams::os::MemoryPageSize];
     u64 __nx_exception_stack_size = sizeof(__nx_exception_stack);
     void __libnx_exception_handler(ThreadExceptionDump *ctx);
+
+    void *__libnx_thread_alloc(size_t size);
+    void __libnx_thread_free(void *mem);
 }
 
 namespace ams {
@@ -107,6 +110,14 @@ void __appExit(void) {
     fsExit();
 }
 
+void *__libnx_thread_alloc(size_t size) {
+    AMS_ABORT("__libnx_thread_alloc was called");
+}
+
+void __libnx_thread_free(void *mem) {
+    AMS_ABORT("__libnx_thread_free was called");
+}
+
 int main(int argc, char **argv) {
     /* Launch all mitm modules in sequence. */
     mitm::LaunchAllModules();