staging: dgap: get rid of brd->firstminor because it is 0

firstminor in struct borad_t is always zero, so it
can be removed.

Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2 files changed