Add required priv-app permissions for SystemUIGoogle

Fixes:

11-25 01:42:00.604  2784  2784 E System  : ************ Failure starting system services
11-25 01:42:00.604  2784  2784 E System  : java.lang.IllegalStateException: Signature|privileged permissions not in privapp-permissions allowlist: {com.android.systemui (/system_ext/priv-app/SystemUIGoogle): android.permission.ACCESS_CONTEXT_HUB, com.android.systemui (/system_ext/priv-app/SystemUIGoogle): android.permission.REGISTER_STATS_PULL_ATOM, com.android.systemui (/system_ext/priv-app/SystemUIGoogle): android.permission.SET_WALLPAPER_COMPONENT}

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>