Only show smart actions for whitelisted apps in lock task mode.

In lock task mode only apps from a specific whitelist can be started. To
avoid showing buttons that won't do anything when clicked we remove
smart actions linking to apps that are not whitelisted.

In this change we add several IPC calls during smart suggestions (in
notification) inflation - one in the common code flow, and several
others only for the case where lock task kiosk mode is enabled. This is
OK from a performance perspective because we inflate smart suggestions
on a background thread.

Bug: 117976013
Test: atest InflatedSmartRepliesTest
Test: start lock-task mode with 1. chrome whitelisted -> chrome actions
show up, 2. chrome not whitelisted -> chrome actions don't show up.
Test: ensure smart replies are still enabled in lock task mode.
Change-Id: I664ff2cdcfd1b212744d85d36d7a2b305bf4b3a9