drm/xe: Convert xe_vma_op_flags to BIT macros

Rather than open code the shift for values, use BIT macros.
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/xe_vm_types.h

@@ -370,11 +370,11 @@ struct xe_vma_op_prefetch {
 /** enum xe_vma_op_flags - flags for VMA operation */
 enum xe_vma_op_flags {
 	/** @XE_VMA_OP_FIRST: first VMA operation for a set of syncs */
-	XE_VMA_OP_FIRST		= (0x1 << 0),
+	XE_VMA_OP_FIRST		= BIT(0),
 	/** @XE_VMA_OP_LAST: last VMA operation for a set of syncs */
-	XE_VMA_OP_LAST		= (0x1 << 1),
+	XE_VMA_OP_LAST		= BIT(1),
 	/** @XE_VMA_OP_COMMITTED: VMA operation committed */
-	XE_VMA_OP_COMMITTED	= (0x1 << 2),
+	XE_VMA_OP_COMMITTED	= BIT(2),
 };
 
 /** struct xe_vma_op - VMA operation */