Update SysUI to be compatible with latest Jetpack libraries

Nullability updates.

Bug: 214255490
Test: manual
Change-Id: I9e793fb569f1bd6568b951d908d483fb4acfcd8c
Merged-In: I9e793fb569f1bd6568b951d908d483fb4acfcd8c
(cherry picked from commit b39a197e9e)
(cherry picked from commit 95888176f2)

packages/SystemUI/src/com/android/systemui/controls/management/ControlAdapter.kt

@@ -343,7 +343,7 @@ private class ControlHolderAccessibilityDelegate(
         info.className = Switch::class.java.name
     }
 
-    override fun performAccessibilityAction(host: View?, action: Int, args: Bundle?): Boolean {
+    override fun performAccessibilityAction(host: View, action: Int, args: Bundle?): Boolean {
         if (super.performAccessibilityAction(host, action, args)) {
             return true
         }