ARM: shmobile: r8a7790: add sound SCU clock support

This is needed to use SRC (= Sampling Rate Converter).
MSTP1017 is defined top of MSTPxxx list to avoid runtime error,
since it is parent clock of MSTP1031 - MSTP1022

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --cc arch/arm/mach-shmobile/clock-r8a7790.c
Simple merge