Rename "centralized_status_bar_dimens_refactor" flag

A normal flag can't just be turned into a bug fix flag. It has to be
renamed.

Bug: 317199366
Test: NA
Flag: ACONFIG com.android.systemui.centralized_status_bar_height_fix DISABLED
Change-Id: Id41e2017ca3016bd2a331b5d52b897ca232ae495
diff --git a/packages/SystemUI/aconfig/systemui.aconfig b/packages/SystemUI/aconfig/systemui.aconfig
index 2c285c8..46989f3 100644
--- a/packages/SystemUI/aconfig/systemui.aconfig
+++ b/packages/SystemUI/aconfig/systemui.aconfig
@@ -295,7 +295,7 @@
 }
 
 flag {
-   name: "centralized_status_bar_dimens_refactor"
+   name: "centralized_status_bar_height_fix"
    namespace: "systemui"
    description: "Refactors shade header and keyguard status bar to read status bar dimens from a"
         " central place, instead of reading resources directly. This is to take into account display"