Profiling SysServer Flags

Flags for starting service from system server, and for exposing framework side initialization of profiling.

Test: presubmit, use in following cl
Bug: 293957254
Change-Id: I10b2b005617d861be21a054554af9df28970d4bd
diff --git a/AconfigFlags.bp b/AconfigFlags.bp
index 9ee74e3..1c6df75 100644
--- a/AconfigFlags.bp
+++ b/AconfigFlags.bp
@@ -56,6 +56,7 @@
     ":android.service.notification.flags-aconfig-java{.generated_srcjars}",
     ":android.service.voice.flags-aconfig-java{.generated_srcjars}",
     ":android.speech.flags-aconfig-java{.generated_srcjars}",
+    ":android.systemserver.flags-aconfig-java{.generated_srcjars}",
     ":android.tracing.flags-aconfig-java{.generated_srcjars}",
     ":android.view.accessibility.flags-aconfig-java{.generated_srcjars}",
     ":android.view.contentcapture.flags-aconfig-java{.generated_srcjars}",
@@ -1159,3 +1160,16 @@
     host_supported: true,
     defaults: ["framework-minus-apex-aconfig-java-defaults"],
 }
+
+// System Server
+aconfig_declarations {
+    name: "android.systemserver.flags-aconfig",
+    package: "android.server",
+    srcs: ["services/java/com/android/server/flags.aconfig"],
+}
+
+java_aconfig_library {
+    name: "android.systemserver.flags-aconfig-java",
+    aconfig_declarations: "android.systemserver.flags-aconfig",
+    defaults: ["framework-minus-apex-aconfig-java-defaults"],
+}