ARM: shmobile: marzen-reference: Enable TMU0 in device tree

No more device needs to be added from platform code when booting the
reference platform, remove the now empty
r8a7779_add_standard_devices_dt() function completely.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Tested-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --cc arch/arm/boot/dts/r8a7779-marzen.dts
Simple merge

diff --cc arch/arm/mach-shmobile/board-marzen-reference.c
Simple merge

diff --cc arch/arm/mach-shmobile/r8a7779.h
Simple merge

diff --cc arch/arm/mach-shmobile/setup-r8a7779.c
Simple merge