5142 libzfs support raidz root pool (loader project)

illumos/illumos-gate@d5f26ad812
d5f26ad812

https://www.illumos.org/issues/5142
  the current libzfs only allows simple disk and mirror setup for boot pool, as
  loader does support booting from raidz, this feature will remove raidz
  restriction from boot pool setup.

Reviewed by: George Wilson <george.wilson@delphix.com>
Reviewed by: Yuri Pankov <yuri.pankov@nexenta.com>
Reviewed by: Andrew Stormont <andyjstormont@gmail.com>
Reviewed by: Albert Lee <trisk@omniti.com>
Approved by: Robert Mustacchi <rm@joyent.com>
Author: Toomas Soome <tsoome@me.com>

lib/libzfs/common/libzfs_pool.c

@@ -2267,6 +2267,7 @@ vdev_get_physpaths(nvlist_t *nv, char *physpath, size_t phypath_size,
 				return (ret);
 		}
 	} else if (strcmp(type, VDEV_TYPE_MIRROR) == 0 ||
+	    strcmp(type, VDEV_TYPE_RAIDZ) == 0 ||
 	    strcmp(type, VDEV_TYPE_REPLACING) == 0 ||
 	    (is_spare = (strcmp(type, VDEV_TYPE_SPARE) == 0))) {
 		nvlist_t **child;