linux_spi.c: set SPI mode, bit order and bits per word on init

Previously we relied on a correctly set up state.

Also, we start to rely on the shutdown function for cleanup after
registering it, i.e. we no longer explicitly call close(fd) after
register_shutdown().

Corresponding to flashrom svn r1512.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Tested-by: Denis 'GNUtoo' Carikli <GNUtoo@no-log.org>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
1 file changed