ARM: shmobile: Ignore callbacks for subsys generic_pm_domain_data

There are no active users of these callbacks, thus there are no benefit
of trying to invoke them.

Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --cc arch/arm/mach-shmobile/pm-rmobile.c
Simple merge