[Custom Key Glyph] Add aconfig flag for shortcut custom key glyph

Bug: 353902478
Test: EXEMPT (Adding flag)
Flag: com.android.systemui.shortcut_helper_key_glyph
Change-Id: I0f0512b4a42e18d524ae3dcc131b5d541c399ee1
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index 2278789..4178ed4 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -977,6 +977,16 @@
 }
 
 flag {
+    name: "shortcut_helper_key_glyph"
+    namespace: "systemui"
+    description: "Allow showing key glyph in shortcut helper"
+    bug: "353902478"
+    metadata {
+      purpose: PURPOSE_BUGFIX
+    }
+}
+
+flag {
   name: "dream_overlay_bouncer_swipe_direction_filtering"
   namespace: "systemui"
   description: "do not initiate bouncer swipe when the direction is opposite of the expansion"