Branching for d17-5; Bump $(ProductVersion) to 13.2.0

Xamarin.Android v13.2.0 will be shipped as part of
Visual Studio 2022 17.5 Preview 3 and subsequent releases.

.external

@@ -1,2 +1,2 @@
-xamarin/monodroid:main@c0c933b7a5286c0babecb165c0676c32f5e44092
+xamarin/monodroid:d17-5@c0c933b7a5286c0babecb165c0676c32f5e44092
 mono/mono:2020-02@6dd9def57ce969ca04a0ecd9ef72c0a8f069112d

.gitmodules

@@ -13,7 +13,7 @@
 [submodule "external/Java.Interop"]
     path = external/Java.Interop
     url = https://github.com/xamarin/java.interop.git
-    branch = main
+    branch = d17-5
 [submodule "external/lz4"]
     path = external/lz4
     url = https://github.com/lz4/lz4.git
@@ -41,4 +41,4 @@
 [submodule "external/xamarin-android-tools"]
     path = external/xamarin-android-tools
     url = https://github.com/xamarin/xamarin-android-tools
-    branch = main
+    branch = d17-5

Directory.Build.props

@@ -28,7 +28,7 @@
   </PropertyGroup>
 
   <PropertyGroup>
-    <ProductVersion>13.1.99</ProductVersion>
+    <ProductVersion>13.2.0</ProductVersion>
     <!-- NuGet package version numbers. See Documentation/guides/OneDotNet.md.
          Rules:
          * Major/Minor match Android stable API level, such as 30.0 for API 30.