ichspi: print flash descriptor dependent information only when it is valid

Also, fix some coding style issues.

Corresponding to flashrom svn r1462.

Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
1 file changed