[SCSI] i2o: fix memory leak in i2o_exec_lct_modified

i2o_exec_lct_modified() does not release memory allocated for work_struct.

Signed-off-by: Vasily Averin <vvs@sw.ru>

Although your patch is the same, i've rewritten it a little bit for
naming consistency in the I2O driver.

Acked-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>