scsi: ufs: fix spelling in variable

A variable named ioct_data should have named ioctl_data. This change is
important for synchronizing the original change with mailing list version.

Change-Id: I224989d3caf2ee0faad6b99cd6774983438c5464
Signed-off-by: Dolev Raviv <draviv@codeaurora.org>