This patch adds SC_C_SYNC_CTRL into enum sc_ctrl_e to sync with SCU
firmware commit <1db854d7d521> (SCF-151: Added new SC_C_SYNC_CTRL to
control both control signals at the same time.).
Signed-off-by: Liu Ying <victor.liu@nxp.com>
(cherry picked from commit 9e4a5892da)