Creates mapping from isolated apps to isolated_compute_app

Provides mapping using the isIsolatedComputeApp to enable certain
isolated process running in such domain with more hardware
acceleratation.

Bug: 267494028
Test: m && atest --host libselinux_test with change on android_unittest.cpp
Change-Id: I9ff341de69e0ad15cb7764276e0c726d54261b84
diff --git a/private/seapp_contexts b/private/seapp_contexts
index d950c3d..99f9a23 100644
--- a/private/seapp_contexts
+++ b/private/seapp_contexts
@@ -153,6 +153,7 @@
 user=shell seinfo=platform domain=shell name=com.android.shell type=shell_data_file
 user=webview_zygote seinfo=webview_zygote domain=webview_zygote
 user=_isolated domain=isolated_app levelFrom=user
+user=_isolated isIsolatedComputeApp=true domain=isolated_compute_app levelFrom=user
 user=_sdksandbox domain=sdk_sandbox type=sdk_sandbox_data_file levelFrom=all
 user=_app seinfo=app_zygote domain=app_zygote levelFrom=user
 user=_app seinfo=media domain=mediaprovider type=app_data_file levelFrom=user