Check the mutex tag in MutexLock if the given handle isn't found

Makes sure the correct error is reported as HOS only reports
InvalidHandle if the tag matches.

app/src/main/cpp/skyline/kernel/types/KProcess.cpp

@@ -110,6 +110,9 @@ namespace skyline::kernel::type {
         try {
             owner = GetHandle<KThread>(ownerHandle);
         } catch (const std::out_of_range &) {
+            if (*mutex != (ownerHandle | HandleWaitersBit))
+                return result::InvalidCurrentMemory;
+
             return result::InvalidHandle;
         }