ViewConfigurationParams APIs in pixels instead of dp

... for touch slop, min and max fling velocities.

Bug: 405708042, 422747987
Test: atest ViewConfigurationParamsTest
Test: atest VirtualDeviceViewConfigurationTest
Test: atest ViewConfigurationControllerTest
Flag: android.companion.virtualdevice.flags.viewconfiguration_apis
Change-Id: I7703fe28fc7cc60395bf0b79eb8fd19c11bee07f