Re-enable previous Android SDK device test on .NET 12

[jonathanpeppers]

Android framework version

Other (.NET 12 development branch)

Affected platform version

.NET 12 / dotnet/android main

Description

Re-enable DotNetInstallAndRunPreviousSdk when main targets net12.0-android. At that point the test should build and run a net11.0-android application with the surviving runtime support instead of relying on the removed MonoVM and 32-bit ABI path.

Steps to Reproduce

1. Build main after it targets net12.0-android.
2. Update DotNetInstallAndRunPreviousSdk to target net11.0-android through PreviousDotNetTargetFramework.
3. Run the device integration test for supported CoreCLR configurations and verify build, installation, and launch.

Did you find any workaround?

The test is ignored until main advances to .NET 12 and the previous target framework is .NET 11.

Relevant log output

N/A