Move to isolated testing.

Modify the MapInfoCreateMemoryTest to work in the isolated mode.

Test: Ran unit tests on host/target.
Change-Id: I84e01d96e852acd813e0f203b4a207cfaf8ca556
diff --git a/libunwindstack/Android.bp b/libunwindstack/Android.bp
index a0a6b4f..dfe9747 100644
--- a/libunwindstack/Android.bp
+++ b/libunwindstack/Android.bp
@@ -162,6 +162,7 @@
 cc_test {
     name: "libunwindstack_test",
     defaults: ["libunwindstack_flags"],
+    isolated: true,
 
     srcs: [
         "tests/ArmExidxDecodeTest.cpp",
@@ -184,6 +185,7 @@
         "tests/ElfInterfaceTest.cpp",
         "tests/ElfTest.cpp",
         "tests/ElfTestUtils.cpp",
+        "tests/IsolatedSettings.cpp",
         "tests/JitDebugTest.cpp",
         "tests/LocalUnwinderTest.cpp",
         "tests/LogFake.cpp",