TB_SENSE_12 would have been left behind by the changes in #7778. This commit implements the changes in mbed to allow targets to provide a default network interface for Silicon Labs targets.
Created one configuration .json file for boards with internal
wifi (HeapBlockDeviceAndWifiInterface.json). Removed dedicated
Odin, Wiced and Realtek wifi configuration files. Removed Odin
ethernet configuration file and replaced that with general
ethernet configuration.
Not all devices have enough heap to fit a simulated heap block device,
however using a simulated heap block device is preferred if available
(reduced flash wear, faster testing).
Added MBED_TEST_SIM_BLOCKDEVICE for tests that only need a simulated
block device (wear_leveling + resilience), and added support for targets
that are known to have enough heap.
Changing this to none as result of build failures. Wifi needs own configuration
per an enviroment. By setting this to none, net tests are skipped for Realtek
platform.