Adds content description to icons

Icons in App Ops dialog now have a content description

Test: manual using Talkback
Change-Id: I987d5191e3a0b21ddb168591134459701a5a3ac7
Fixes: 122722302

packages/SystemUI/src/com/android/systemui/privacy/OngoingPrivacyDialog.kt

@@ -119,12 +119,13 @@ class OngoingPrivacyDialog constructor(
 
         appName.text = app.applicationName
         if (showIcons) {
-            dialogBuilder.generateIconsForApp(types).forEach {
+            dialogBuilder.generateIconsForApp(types).forEachIndexed { index, it ->
                 it.setBounds(0, 0, iconSize, iconSize)
                 val image = ImageView(context).apply {
                     imageTintList = ColorStateList.valueOf(iconColor)
                     setImageDrawable(it)
                 }
+                image.contentDescription = types[index].getName(context)
                 icons.addView(image, lp)
             }
             icons.visibility = View.VISIBLE