SF: Set up libscheduler headers

Start pulling Scheduler sources into a libscheduler target akin to
librenderengine and libcompositionengine.

Bug: 185535769
Test: Build
Change-Id: I8ee871cce96209c8c53601152501129b09c5e46f
diff --git a/services/surfaceflinger/Android.bp b/services/surfaceflinger/Android.bp
index fb42cc0..29636f8 100644
--- a/services/surfaceflinger/Android.bp
+++ b/services/surfaceflinger/Android.bp
@@ -78,10 +78,10 @@
         "libframetimeline",
         "libperfetto_client_experimental",
         "librenderengine",
+        "libscheduler",
         "libserviceutils",
         "libtonemap",
         "libtrace_proto",
-        "libaidlcommonsupport",
     ],
     header_libs: [
         "android.hardware.graphics.composer@2.1-command-buffer",