Define aconfig flags for settingslib

Adds a settingslib.aconfig that is separate from the existing
settlingslib_media_flag_declarations.aconfig file. The existing aconfig
uses a media package and it seemed to make more sense to break out a
shared settlingslib flag file

The new file defines com.settingslib.flags.new_status_bar_icons

Test: compile
Test: settingslib robo tests, settingslib unit tests
Bug: 314812750
Flag: ACONFIG com.settingslib.flags.new_status_bar_icons DEVELOPMENT
Change-Id: I33399555c81acaed314e2b8dc2fed37ef7249050
diff --git a/packages/SettingsLib/Android.bp b/packages/SettingsLib/Android.bp
index b9dc618..2501869 100644
--- a/packages/SettingsLib/Android.bp
+++ b/packages/SettingsLib/Android.bp
@@ -48,6 +48,7 @@
         "SettingsLibTwoTargetPreference",
         "SettingsLibUsageProgressBarPreference",
         "SettingsLibUtils",
+        "settingslib_media_flags_lib",
         "settingslib_flags_lib",
     ],
 
@@ -78,6 +79,19 @@
 }
 
 java_aconfig_library {
-    name: "settingslib_flags_lib",
+    name: "settingslib_media_flags_lib",
     aconfig_declarations: "settingslib_media_flags",
 }
+
+aconfig_declarations {
+    name: "settingslib_flags",
+    package: "com.android.settingslib.flags",
+    srcs: [
+        "aconfig/settingslib.aconfig",
+    ],
+}
+
+java_aconfig_library {
+    name: "settingslib_flags_lib",
+    aconfig_declarations: "settingslib_flags",
+}