Update SystemUI aconfig files to match new style

See go/sysui-aconfig-structure

Bug: 297872375
Test: build
Change-Id: Ide9ec71e572195d69f2e1995bd140b41f21e4041
diff --git a/packages/SystemUI/aconfig/Android.bp b/packages/SystemUI/aconfig/Android.bp
new file mode 100644
index 0000000..c1390b2
--- /dev/null
+++ b/packages/SystemUI/aconfig/Android.bp
@@ -0,0 +1,13 @@
+aconfig_declarations {
+    name: "com_android_systemui_flags",
+    package: "com.android.systemui",
+    srcs: [
+        "systemui.aconfig",
+        "accessibility.aconfig",
+    ],
+}
+
+java_aconfig_library {
+    name: "com_android_systemui_flags_lib",
+    aconfig_declarations: "com_android_systemui_flags",
+}
diff --git a/packages/SystemUI/aconfig/accessibility.aconfig b/packages/SystemUI/aconfig/accessibility.aconfig
new file mode 100644
index 0000000..8841967
--- /dev/null
+++ b/packages/SystemUI/aconfig/accessibility.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.systemui"
+
+flag {
+    name: "floating_menu_overlaps_nav_bars_flag"
+    namespace: "accessibility"
+    description: "Adjusts bounds to allow the floating menu to render on top of navigation bars."
+    bug: "283768342"
+}
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
new file mode 100644
index 0000000..70832f5
--- /dev/null
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.systemui"
+
+flag {
+    name: "example_flag"
+    namespace: "systemui"
+    description: "An Example Flag"
+    bug: "292511372"
+}
\ No newline at end of file