staging: qlge: Avoid multiplication while keep the same logic

Avoid the more expensive multiplication while keep the same logic.

Signed-off-by: Binyi Han <dantengknight@gmail.com>
Link: https://lore.kernel.org/r/31fe21bf4a9e8f13cf27bd50073e9d5d197654ea.1657697683.git.dantengknight@gmail.com


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