core: Resolve -Wreorder warnings

Ensures the initialization order matches the actual order that the class
member variables will be initialized in.

src/core/hle/kernel/hle_ipc.cpp

@@ -21,7 +21,7 @@ class HLERequestContext::ThreadCallback : public Kernel::WakeupCallback {
 public:
     ThreadCallback(std::shared_ptr<HLERequestContext> context_,
                    std::shared_ptr<HLERequestContext::WakeupCallback> callback_)
-        : context(std::move(context_)), callback(std::move(callback_)) {}
+        : callback(std::move(callback_)), context(std::move(context_)) {}
     void WakeUp(ThreadWakeupReason reason, std::shared_ptr<Thread> thread,
                 std::shared_ptr<WaitObject> object) {
         ASSERT(thread->status == ThreadStatus::WaitHleEvent);

src/core/hle/kernel/vm_manager.cpp

@@ -38,7 +38,7 @@ bool VirtualMemoryArea::CanBeMergedWith(const VirtualMemoryArea& next) const {
 }
 
 VMManager::VMManager(Memory::MemorySystem& memory)
-    : memory(memory), page_table(std::make_shared<Memory::PageTable>()) {
+    : page_table(std::make_shared<Memory::PageTable>()), memory(memory) {
     Reset();
 }