staging: qlge: Remove unnecessary parentheses around struct field

Remove unnecessary parentheses around a struct field accessor that
causes a build failure when QL_DEV_DUMP is set.

Signed-off-by: Rylan Dmello <mail@rylan.coffee>
Link: https://lore.kernel.org/r/4dea7a7fae6a56c51cc19228b82a3c230029f54b.1587959245.git.mail@rylan.coffee


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>