ARM: shmobile: r8a7790: Correct SYSCIER value

ARM: shmobile: r8a7790: Correct SYSCIER value

[ Upstream commit ee72f6adfdd95b53432eb60b6944c6fe2790dd13 ]

Set the SYSCIER as per the values indicated in the documentation.
The value previously used appears to been copied from the r8a7779
implementation but on closer inspection is not correct for the r8a7790.

Fixes: a48f165509c1 ("ARM: shmobile: r8a7790 SYSC setup code")
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Sasha Levin <sasha.levin@oracle.com>