graphics: make mapper VTS utils more reusable

Better include path (#include <mapper-vts/2.0/MapperVts.h>), better
library naming, and move GraphicsMapperHidlEnvironment to where
tests are defined.

Test: VTS
Change-Id: I9fbf6515993ac11852b11ca6b8194a58afe5579a
diff --git a/graphics/composer/2.2/vts/functional/Android.bp b/graphics/composer/2.2/vts/functional/Android.bp
index 0325a6c..78322a1 100644
--- a/graphics/composer/2.2/vts/functional/Android.bp
+++ b/graphics/composer/2.2/vts/functional/Android.bp
@@ -61,10 +61,10 @@
         "android.hardware.graphics.composer@2.2",
         "android.hardware.graphics.composer@2.1",
         "android.hardware.graphics.mapper@2.0",
+        "android.hardware.graphics.mapper@2.0-vts",
         "android.hardware.graphics.mapper@2.1",
         "libVtsHalGraphicsComposerTestUtils",
         "libVtsHalGraphicsComposerTestUtils@2.2",
-        "libVtsHalGraphicsMapperTestUtils",
         "libnativehelper",
     ],
     header_libs: [