MAINTAINERS: Fix typo, block/stream.h -> block/stream.c

There is no block/stream.h, the intended filename is block/stream.c
instead.
Signed-off-by: NJeff Cody <jcody@redhat.com>
Reviewed-by: NFam Zheng <famz@redhat.com>
Message-id: b9feeac95301c1b0b1c28a485da5e3781370c31a.1457578261.git.jcody@redhat.com

MAINTAINERS

@@ -1016,7 +1016,7 @@ F: blockjob.c
 F: include/block/blockjob.h
 F: block/backup.c
 F: block/commit.c
-F: block/stream.h
+F: block/stream.c
 F: block/mirror.c
 T: git git://github.com/codyprime/qemu-kvm-jtc.git block