[Inline Reply] Use system expanded for not pinned hun

Not Pinned HUN should use systemExpanded. If they dont, they will not be shown as expanded on shade when they are the first one.

Fixes: 349989253
Test: ExpandableNotificationRowTest and Send a HUN with delay and open the shade. Observe incoming hun to the shade is expanded
Flag: com.android.systemui.expand_heads_up_on_inline_reply
Change-Id: Ib5f276201e0d385461df9c119382596b2103964d
2 files changed