MAINTAINERS: rpmsg: fix git tree location

The current information isn't up-to-date, use Bjorn Andersson's
kernel.org repo instead.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
[bjorn: Replaced github URL]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

MAINTAINERS

@@ -13608,7 +13608,7 @@ REMOTE PROCESSOR MESSAGING (RPMSG) SUBSYSTEM
 M:	Ohad Ben-Cohen <ohad@wizery.com>
 M:	Bjorn Andersson <bjorn.andersson@linaro.org>
 L:	linux-remoteproc@vger.kernel.org
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ohad/rpmsg.git
+T:	git git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc.git rpmsg-next
 S:	Maintained
 F:	drivers/rpmsg/
 F:	Documentation/rpmsg.txt