Fixes read access in synchronous burst mode

Adds an additional clock cycle after the actual access. Allows correct generation of wbm_ack.
Improved device tree script to support all combinations of dma/sync/async modes
Merge branch 'master' of https://github.com/QuickJack/Logi-kernel
Improved device tree script to support all combinations of dma/sync/async modes
Improved device tree support for asynchrnous mode
Merge pull request #3 from QuickJack/master

Fixes read access in synchronous burst mode