Fix maxLines/lines properties for BoringLayout

Line height calculation with maxLines set to zero displayed a single
line when BoringLayout was used. This CL fixes it to show zero lines.

Test: Added related CTS tests to TextViewTest and EditTextText
Test: bit CtsWidgetTestCases:android.widget.cts.TextViewTest
Test: bit CtsWidgetTestCases:android.widget.cts.EditTextTest

Bug: 65435738
Change-Id: Ic21eb50b31666b2dcc2398278010fa072ea1ff67