tests: wait for complete rebuild in integrity checks

'check wait' seems a bit racy now.
Wait for the array to be fully optimal before proceeding.

Signed-off-by: NeilBrown <neilb@suse.de>

tests/01r5integ

@@ -27,7 +27,7 @@ do
      exit 1
     fi
     mdadm $md0 -a $i
-   check wait
+    while ! (check state 'U*'); do check wait; sleep 0.2; done
   done
   mdadm -S $md0
 done

tests/01raid6integ

@@ -47,10 +47,10 @@ do
          exit 1
        fi
        mdadm $md0 -a $first
-       check wait
+       while ! (check state 'U*_U*'); do check wait; sleep 0.2; done
     done
     mdadm $md0 -a $second
-    check wait
+    while ! (check state 'U*'); do check wait; sleep 0.2; done
     totest="$totest $second"
   done
   mdadm -S $md0