Move AVF jar to BCP and rename it to framework-virtualization

In Android U we are planning to provide privileged @SystemApi's to
manage virtual machines. These APIs will be provided by the
framework-virtualization jar.

This change moves the framework-virtualization jar to be part of
the BCP, which will allow us to use the processes and guidelines setup
for Android APIs.

This change also renames the java_sdk_library to framework-virtualization
to align it with other BCP jars provided by APEX modules.

Bug: 243512044
Test: build on product with AVF support
Test: build on product without AVF support
Test: atest --test-mapping packages/modules/Virtualization:avf-presubmit
Change-Id: Ifb0d04d58bb7e18fe548ab3780a0d753c8baba2d
diff --git a/demo/Android.bp b/demo/Android.bp
index 8613166..5241e25 100644
--- a/demo/Android.bp
+++ b/demo/Android.bp
@@ -13,7 +13,7 @@
         "com.google.android.material_material",
     ],
     libs: [
-        "android.system.virtualmachine",
+        "framework-virtualization",
     ],
     jni_libs: ["MicrodroidTestNativeLib"],
     platform_apis: true,