[S390] MAINTAINERS: Add s390 drivers block

There are currently 4 directories in drivers/s390
(block, char, cio, kvm) without maintainers.

Add drivers/s390/ to the s390 kvm section.
Add the rest to the default s390 section.
Add a W: link for drivers/s390/crypto/

Signed-off-by: Joe Perches <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>
diff --git a/MAINTAINERS b/MAINTAINERS
index 4f96ac8..ea3c88e 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3088,6 +3088,7 @@
 F:	Documentation/s390/kvm.txt
 F:	arch/s390/include/asm/kvm*
 F:	arch/s390/kvm/
+F:	drivers/s390/kvm/
 
 KEXEC
 M:	Eric Biederman <[email protected]>
@@ -4502,6 +4503,7 @@
 W:	http://www.ibm.com/developerworks/linux/linux390/
 S:	Supported
 F:	arch/s390/
+F:	drivers/s390/
 
 S390 NETWORK DRIVERS
 M:	Ursula Braun <[email protected]>
@@ -4517,6 +4519,7 @@
 M:	Ralph Wuerthner <[email protected]>
 M:	[email protected]
 L:	[email protected]
+W:	http://www.ibm.com/developerworks/linux/linux390/
 S:	Supported
 F:	drivers/s390/crypto/