storageproxyd: handle DID_REQUEUE

On rare occasions ioctl(SG_IO) can return a host_status of DID_REQUEUE,
requesting the command be requeued.

Add handling for this status through the existing retry mechanism.

Bug: 391225712
Test: boot to home
Change-Id: Ie7db6d86defe6cb8423d8a096b926b65db3f0276