SF: Set up libscheduler and libscheduler_test

Fix up dependencies to migrate Timer files for starters.

Bug: 185535769
Test: libscheduler_test
Change-Id: I028cb04f2e355e2096be9efe3c1a80f0dfd75602
diff --git a/services/surfaceflinger/tests/unittests/Android.bp b/services/surfaceflinger/tests/unittests/Android.bp
index c053d43..d3be0ea 100644
--- a/services/surfaceflinger/tests/unittests/Android.bp
+++ b/services/surfaceflinger/tests/unittests/Android.bp
@@ -89,7 +89,6 @@
         "RegionSamplingTest.cpp",
         "TimeStatsTest.cpp",
         "FrameTracerTest.cpp",
-        "TimerTest.cpp",
         "TransactionApplicationTest.cpp",
         "TransactionFrameTracerTest.cpp",
         "TransactionProtoParserTest.cpp",
@@ -178,11 +177,12 @@
         "server_configurable_flags",
     ],
     header_libs: [
+        "android.hardware.graphics.composer3-command-buffer",
         "android.hardware.graphics.composer@2.1-command-buffer",
         "android.hardware.graphics.composer@2.2-command-buffer",
         "android.hardware.graphics.composer@2.3-command-buffer",
         "android.hardware.graphics.composer@2.4-command-buffer",
-        "android.hardware.graphics.composer3-command-buffer",
+        "libscheduler_test_headers",
         "libsurfaceflinger_headers",
     ],
 }