platforms: Add target-derived platform info for hikey960
platforms: Add target-derived platform info for hikey960

This makes it easier to do platform-specific trace analysis when not connected
to a target.

credp/lisa,ARM-software/lisa,ARM-software/lisa,credp/lisa,ARM-software/lisa,bjackman/lisa,credp/lisa,bjackman/lisa,credp/lisa,ARM-software/lisa