PM / Runtime: Fix typo in status comparison causing warning

GCC version 4.5.1 gives the following warning:

drivers/base/power/runtime.c: In function ‘rpm_check_suspend_allowed’:
drivers/base/power/runtime.c:146:25: warning: comparison between ‘enum dpm_state’ and ‘enum rpm_status’

which seems to be a typo in that dev->power.runtime_status
should be compared instead of dev->power.status.
Signed-off-by: Kevin Winchester <kjwinchester@gmail.com>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>

drivers/base/power/runtime.c

@@ -143,7 +143,7 @@ static int rpm_check_suspend_allowed(struct device *dev)
 
 	/* Pending resume requests take precedence over suspends. */
 	else if ((dev->power.deferred_resume
-			&& dev->power.status == RPM_SUSPENDING)
+			&& dev->power.runtime_status == RPM_SUSPENDING)
 	    || (dev->power.request_pending
 			&& dev->power.request == RPM_REQ_RESUME))
 		retval = -EAGAIN;