[device_info][device_info_platform_interface] update to git deps (#3164)

Author: Chris Yang

packages/device_info/device_info/pubspec.yaml

@@ -23,8 +23,10 @@ dependencies:
   flutter:
     sdk: flutter
   device_info_platform_interface:
-    path: ../device_info_platform_interface
-
+    git:
+      url: https://github.com/flutter/plugins.git
+      ref: nnbd
+      path: packages/device_info/device_info_platform_interface
 dev_dependencies:
   test: ^1.10.0-nullsafety.1
   flutter_test:

packages/device_info/device_info_platform_interface/pubspec.yaml

@@ -13,7 +13,10 @@ dependencies:
     sdk: flutter
   meta: ^1.3.0-nullsafety.3
   plugin_platform_interface:
-    path: ../../plugin_platform_interface
+    git:
+      url: https://github.com/flutter/plugins.git
+      ref: nnbd
+      path: packages/plugin_platform_interface
 
 dev_dependencies:
   flutter_test: