scsi: ufs-qcom: Only select QCOM_SCM if SCSI_UFS_CRYPTO

QCOM_SCM is only needed to make the qcom_scm_*() calls in ufs-qcom-ice.c,
which is only compiled when SCSI_UFS_CRYPTO=y.  So don't unnecessarily
enable QCOM_SCM when SCSI_UFS_CRYPTO=n.

Link: https://lore.kernel.org/r/20201114004754.235378-1-ebiggers@kernel.org


Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>