scsi: ufs-qcom: Make structure ufs_hba_qcom_vops constant

Static structure ufs_hba_qcom_vops, of type ufs_hba_variant_ops, is used
only once, when it is passed as the second argument to function
ufshcd_pltfrm_init(). In the definition of ufshcd_pltfrm_init(), its second
parameter (corresponding to ufs_hba_qcom_vops) is declared as
constant. Hence declare ufs_hba_qcom_vops itself constant as well to
protect it from unintended modification.  Issue found with Coccinelle.
Signed-off-by: Nishka Dasgupta <nishkadg.linux@gmail.com>
Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/ufs/ufs-qcom.c

@@ -1551,7 +1551,7 @@ static void ufs_qcom_dump_dbg_regs(struct ufs_hba *hba)
  * The variant operations configure the necessary controller and PHY
  * handshake during initialization.
  */
-static struct ufs_hba_variant_ops ufs_hba_qcom_vops = {
+static const struct ufs_hba_variant_ops ufs_hba_qcom_vops = {
 	.name                   = "qcom",
 	.init                   = ufs_qcom_init,
 	.exit                   = ufs_qcom_exit,