Create aconfig flag for relocating Smartspace to bottom.

Per recommended workaround in go/sysui-aconfig, "all flags in each
codebase should use just one namespace". Therefore, this CL uses
systemui.aconfig rather than sysui_integrations.aconfig.

Bug: 316212788
Flag: N/A
Test: N/A

Change-Id: I403a3ac37ca9c0002c22d923390ba4f77e334e50
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index d9286b3..62f4c13 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -296,3 +296,10 @@
    description: "Displays the auto on toggle in the bluetooth QS tile dialog"
    bug: "316985153"
 }
+
+flag {
+   name: "smartspace_relocate_to_bottom"
+   namespace: "systemui"
+   description: "Relocate Smartspace to bottom of the Lock Screen"
+   bug: "316212788"
+}