drm/xe/xe_sriov_vfio: Fix return value in xe_sriov_vfio_migration_supported()

The xe_sriov_vfio_migration_supported() function is type bool so
returning -EPERM means returning true. Return false instead.

Fixes: bd45d46ffc8f ("drm/xe/pf: Export helpers for VFIO")
Signed-off-by: Dan Carpenter <[e-mail]>
Reviewed-by: Michal Wajdeczko <[e-mail]>
Link: https://patch.msgid.link/[e-mail]
Signed-off-by: Michał Winiarski <[e-mail]>
(cherry picked from commit 0a2404c8f6a3a120f79c57ef8a3302c8e8bc34d9)
Signed-off-by: Thomas Hellström <[e-mail]>

drivers/gpu/drm/xe/xe_sriov_vfio.c

···
 bool xe_sriov_vfio_migration_supported(struct xe_device *xe)
 {
 	if (!IS_SRIOV_PF(xe))
-		return -EPERM;
+		return false;
 
 	return xe_sriov_pf_migration_supported(xe);
 }