Enable hot mode for iOS devices (#5308)

packages/flutter_tools/lib/src/ios/devices.dart

diff --git a/packages/flutter_tools/lib/src/ios/devices.dart b/packages/flutter_tools/lib/src/ios/devices.dart
index 28b478f..0d81085 100644
--- a/packages/flutter_tools/lib/src/ios/devices.dart
+++ b/packages/flutter_tools/lib/src/ios/devices.dart
@@ -68,6 +68,9 @@
   String get pusherPath => _pusherPath;
 
   @override
+  bool get supportsHotMode => true;
+
+  @override
   final String name;
 
   _IOSDeviceLogReader _logReader;