media: MAINTAINERS: Add linux-renesas-soc mailing list to renesas JPU

'linux-renesas-soc' is the mailing list for renesas SOC driver,
so add it to renesas JPU driver info.
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

MAINTAINERS

@@ -10033,6 +10033,7 @@ F:	include/linux/jbd2.h
 JPU V4L2 MEM2MEM DRIVER FOR RENESAS
 M:	Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
 L:	linux-media@vger.kernel.org
+L:	linux-renesas-soc@vger.kernel.org
 S:	Maintained
 F:	drivers/media/platform/rcar_jpu.c