Add a flag for shaderlib.

Extend the shaderlib to support common loading effects.

Bug: 282007590
Test: m
Flag: ACONFIG shaderlib_loading_effect_refactor DISABLED
Change-Id: I33f3044de5cefbbe2c4026101f6c4ad6a0b7642d
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index 3db99f28..62e5897 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -384,3 +384,11 @@
    description: "Enables on-screen contextual tip about how to take screenshot."
    bug: "322891421"
 }
+
+flag {
+   name: "shaderlib_loading_effect_refactor"
+   namespace: "systemui"
+   description: "Extend shader library to provide the common loading effects."
+   bug: "282007590"
+}
+