MAINTAINERS: Update SRP initiator entry

We have been asked to use our company e-mail address for open
source contributions. Hence this change from a personal e-mail
address into a company e-mail address.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Roland Dreier <roland@purestorage.com>

MAINTAINERS

@@ -8450,7 +8450,7 @@ S:	Maintained
 F:	drivers/scsi/sr*
 
 SCSI RDMA PROTOCOL (SRP) INITIATOR
-M:	Bart Van Assche <bvanassche@acm.org>
+M:	Bart Van Assche <bart.vanassche@sandisk.com>
 L:	linux-rdma@vger.kernel.org
 S:	Supported
 W:	http://www.openfabrics.org