`sram.h` is not referenced anywhere (or, better, `grep -ir sram.h` does
not return any matching result) while `gpio.h` is included with
`<linux/gpio.h>`, suggesting the system header file is used.
- fix ccat startup stall and 64 bit address usage
- limit rx processing to one frame per poll
- print registered gpio base to kernel log
- fix constness for *_driver objects
- refactor dma fifo initialization
- refactor rx/tx fifo code and structures
- add driver for the SRAM function block
- add driver for the GPIO function block
- add support for multiple CCATs
- prepare support for devices without pci
Nicola Fontana
Florian Pose
Patrick Bruenn