dgnc: get rid of dpacompat.h, move remaining stuff to digi.h

Dpacompat.h contained a lot of unused #defines and only few things are
used from it so since we've trimmed down digi.h, now we can delete
dpacompat.h and move remaining stuff into digi.h.

Signed-off-by: Giedrius Statkevičius <giedrius.statkevicius@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/dgnc/dgnc_driver.c
Simple merge

diff --cc drivers/staging/dgnc/dgnc_mgmt.c
Simple merge

diff --cc drivers/staging/dgnc/dgnc_tty.c
Simple merge

diff --cc drivers/staging/dgnc/digi.h
Simple merge

diff --cc drivers/staging/dgnc/dpacompat.h
Simple merge