Reconfigure display info. after configuration changes.

Some of the information reported for a display is dependent on resources to do
the right calculations. For example, {@link DisplayInfo#smallestNominalAppWidth}
and company are dependent on the height and width of the status and nav bar
which change depending on the current configuration.

Bug: 28182307
Change-Id: I2ba5de4bcfb3fa3ad334e69eb192bd15f8f7ebb2