Don't include sysUI insets on secondary displays

Currently there is a single instance of WindowManagerPolicy
used in Window Manager and it is configured according to
primary display settings. Because of that it reports display
size with navigation bar insets even for secondary displays.

This CL adds displayId param, so it can adjust reported metrics
correctly when requested.

Bug: 32910901
Test: android.display.cts.DisplayTest
Change-Id: I14967fc13907c4fde17aed6a769d03cbde3ec1be