Ensure Audio Sources View is 48dp

Accessibility scanner was detecting the Audio Sources view in the dropdown were sometimes <48dp, so setting minHeight to 48dp to ensure it is always 48dp.

Fix: 308520762
Test: Manual test
Flag: None
Change-Id: I2cb0af49957088097b9806df23598c521d20cf50
diff --git a/packages/SystemUI/res/layout/screen_record_dialog_audio_source.xml b/packages/SystemUI/res/layout/screen_record_dialog_audio_source.xml
index 130472d..02c8c3a 100644
--- a/packages/SystemUI/res/layout/screen_record_dialog_audio_source.xml
+++ b/packages/SystemUI/res/layout/screen_record_dialog_audio_source.xml
@@ -17,7 +17,8 @@
 <LinearLayout
     xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="250dp"
-    android:layout_height="48dp"
+    android:layout_height="wrap_content"
+    android:minHeight="48dp"
     android:orientation="vertical"
     android:padding="12dp">
     <TextView