mmc: new request notification unit-test

The new request notification test checks the following scenario:
A new request arrives after a NULL request was sent to the mmc_queue,
which is waiting for completion of a former request.

Change-Id: I05db0959ded400e292eb5e84e1ecfc579b78ee62
Signed-off-by: Konstantin Dorfman <kdorfman@codeaurora.org>
Signed-off-by: Lee Susman <lsusman@codeaurora.org>
diff --git a/block/Kconfig.iosched b/block/Kconfig.iosched
index 5751d28..5fd98ea 100644
--- a/block/Kconfig.iosched
+++ b/block/Kconfig.iosched
@@ -15,7 +15,7 @@
 config IOSCHED_TEST
 	tristate "Test I/O scheduler"
 	depends on DEBUG_FS
-	default y
+	default m
 	---help---
 	  The test I/O scheduler is a duplicate of the noop scheduler with
 	  addition of test utlity.