hid: Clear keyboard states & fix logic issue

Previously we never cleared the states of the entries and the key would stay held down, also looping over the key bytes for each key lead to setting every bit for the key state instead of the key we wanted

src/core/hle/service/hid/controllers/keyboard.cpp

@@ -38,10 +38,11 @@ void Controller_Keyboard::OnUpdate(const Core::Timing::CoreTiming& core_timing,
     cur_entry.sampling_number = last_entry.sampling_number + 1;
     cur_entry.sampling_number2 = cur_entry.sampling_number;
 
+    cur_entry.key.fill(0);
+    cur_entry.modifier = 0;
+
     for (std::size_t i = 0; i < keyboard_keys.size(); ++i) {
-        for (std::size_t k = 0; k < KEYS_PER_BYTE; ++k) {
-            cur_entry.key[i / KEYS_PER_BYTE] |= (keyboard_keys[i]->GetStatus() << k);
-        }
+        cur_entry.key[i / KEYS_PER_BYTE] |= (keyboard_keys[i]->GetStatus() << (i % KEYS_PER_BYTE));
     }
 
     for (std::size_t i = 0; i < keyboard_mods.size(); ++i) {