Update the device twoPanelId specs to use the default spec when it is not defined

In some situations, DeviceProfile is recreated with an invalid InvariantDeviceProfile leading to a crash, because it tries to use an non existent responsive grid spec. To prevent the crash, we are update the responsive grid two panel specs to use the default spec when two panel spec is not defined.

Bug: 317993862
Flag: ACONFIG com.android.launcher3.enable_responsive_workspace TEAMFOOD
Test: NexusLauncherImageTests
Test: DeviceProfileDumpTest
Test: DeviceProfileAlternativeDisplaysDumpTest
Change-Id: I8b8095745787ad47b006892452a54942f981713e