block / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM

After commit b2b49ccbdd54 (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so #ifdef blocks
depending on CONFIG_PM_RUNTIME may now be changed to depend on
CONFIG_PM.

Replace CONFIG_PM_RUNTIME with CONFIG_PM in the block device core.

Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/block/blk-core.c b/block/blk-core.c
index 0421b53..2bb7d9c 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1325,7 +1325,7 @@
 }
 EXPORT_SYMBOL_GPL(part_round_stats);
 
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
 static void blk_pm_put_request(struct request *rq)
 {
 	if (rq->q->dev && !(rq->cmd_flags & REQ_PM) && !--rq->q->nr_pending)
@@ -2134,7 +2134,7 @@
 	}
 }
 
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
 /*
  * Don't process normal requests when queue is suspended
  * or in the process of suspending/resuming
@@ -3159,7 +3159,7 @@
 }
 EXPORT_SYMBOL(blk_finish_plug);
 
-#ifdef CONFIG_PM_RUNTIME
+#ifdef CONFIG_PM
 /**
  * blk_pm_runtime_init - Block layer runtime PM initialization routine
  * @q: the queue of the device