Add logging for mQsExpandImmediate changes

I suspect reason for QS sometimes disappearing in split shade might have something to do with this value not being set correctly.
Also it's not changing that often - twice per expand/collapse - so should be good to log.

Bug: 219589379
Test: just adding logs
Change-Id: Ic6ef9416c7198109905cfdf16ce4e998cd398f80

packages/SystemUI/src/com/android/systemui/shade/QuickSettingsController.java

@@ -835,6 +835,7 @@ public class QuickSettingsController {
     @VisibleForTesting
     void setExpandImmediate(boolean expandImmediate) {
         if (expandImmediate != mExpandImmediate) {
+            mShadeLog.logQsExpandImmediateChanged(expandImmediate);
             mExpandImmediate = expandImmediate;
             mShadeExpansionStateManager.notifyExpandImmediateChange(expandImmediate);
         }

packages/SystemUI/src/com/android/systemui/shade/ShadeLogger.kt

@@ -150,6 +150,17 @@ class ShadeLogger @Inject constructor(@ShadeLog private val buffer: LogBuffer) {
         )
     }
 
+    fun logQsExpandImmediateChanged(newValue: Boolean) {
+        buffer.log(
+            TAG,
+            LogLevel.VERBOSE,
+            {
+                bool1 = newValue
+            },
+            { "qsExpandImmediate=$bool1" }
+        )
+    }
+
     fun logQsExpansionChanged(
             message: String,
             qsExpanded: Boolean,