test to use get_region_base_address

[Christian-B]

the reloader test was significantly out of data after the dsg reloader work.

1. It did not use the database

   • The test now does which requires setting values
   • The test no longer use Transceiver.read_memory as the reloader code does not

2. It had region sizes (or space between regions) different from what the regenerate_data_specification uses = This is no longer supported

   • One test uses the same sizes
   • One test uses different sizes and asserts an Exception

3. The Test used to check the regions where written twice = The DSG reloader no longer does that weirdness!

[coveralls]

coverage: 42.423% (+0.2%) from 42.241% when pulling c7f9b41d12ea60887d304f73fe9bf1f14266da73 on reloader_test into 532755c64e6e8ea392917ce6bbe44098355bb73b on master.