Normalized style.

We don't use .ifndef .else .endif
Create static drivers directly from source files.

Up to now static drivers were created via co65 from dynamic drivers. However there was an issue with that approach:

The dynamic drivers are "o65 simple files" which obligates that they start with the 'code' segment. However dynamic drivers need to start with the module header - which is written to. For dynamic drivers this isn't more than a conceptual issue because they are always contain a 'data' segment and may therefore only be loaded into writable memory.

However when dynamic drivers are converted to static drivers using co65 then that issue becomes a real problem as then the 'code' segment may end up in non-writable memory - and thus writing to the module header fails.

Instead of changing the way dynamic drivers work I opted to rather make static driver creation totally independent from dynamic drivers. This allows to place the module header in the 'data' segment (see 'module.mac').
Revert "don't define DYN_DRV for targets which don't predefine it"

This reverts commit 29671f5f06066c2faaf5319a7bded3ef87bf1c50.
Merge remote-tracking branch 'upstream/master'