Fix embarrassing typo with saving app pairs

When saving app pairs, we should grab attributes[0] and attributes[1] instead of attributes[0] and attributes[0].

Fixes: 326854996
Test: App pairs saves the correct two apps
Flag: ACONFIG com.android.wm.shell.enable_app_pairs TEAMFOOD
Change-Id: I8d2fc4597cf1f1bd36bc0b910cc022c79a48f067
1 file changed