Improved parsing of brand strings for both Pineview and Cedarview
Atoms.
Add tests for both the Pineview Atom, and also Broadwell-E
(forgotten in a previous commit).
- Atom Dual-core (Diamondville) is renamed to just Atom (Diamondville)
- The test with Atom D425 is named "Pineview", while the one with
Atom D525 was incorrectly named "Cedarview". Moving the latter to
atom-pineview-2.test and fixing its codename.
Instead of one big pile of tests in tests_stash.txt, keep each CPU
example raw data/parsed data in a file, ordered in a tree by
manufacturer and microarchitecture. The 64 .test files have been
extracted from tests_stash.txt. The add_test script is changed to
create_test and it doesn't append to test_stash.txt, instead it
spits out data to be saved in a .test file.
run_tests.py is not refactored yet, to be done in a subsequent commit.
