MAINTAINERS: add remoteproc's git

Add remoteproc's git tree to the MAINTAINERS entry
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>

MAINTAINERS

@@ -5708,6 +5708,7 @@ F:	include/linux/regmap.h
 
 REMOTE PROCESSOR (REMOTEPROC) SUBSYSTEM
 M:	Ohad Ben-Cohen <ohad@wizery.com>
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/remoteproc.git
 S:	Maintained
 F:	drivers/remoteproc/
 F:	Documentation/remoteproc.txt