ARM: shmobile: ape6evm: add "__initconst" annotations where needed

This patch adds __initconst markers to the platform data and resources,
used on ape6evm as parameters to platform_device_register_resndata().
The data is duplicated inside that function, therefore original data
can be discarded after initialisation is completed.

Reported-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski+renesas@gmail.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>