Fix a bad nullcheck.

Common/KeyMap.cpp

@@ -390,6 +390,7 @@ void SetDefaultKeyMap(DefaultMaps dmap, bool replace) {
 	case DEFAULT_MAPPING_BLACKBERRY_QWERTY:
 		SetDefaultKeyMap(DEVICE_ID_KEYBOARD, defaultBlackberryQWERTYKeyMap, ARRAY_SIZE(defaultBlackberryQWERTYKeyMap), replace);
 		replace = false;
+		// Intentional fallthrough.
 	case DEFAULT_MAPPING_PAD:
 		SetDefaultKeyMap(DEVICE_ID_PAD_0, defaultPadMap, ARRAY_SIZE(defaultPadMap), replace);
 		break;