ARM: shmobile: defconfig: Enable missing support based on DTSes

Enable all missing support, extracted from the various Renesas ARM DTSes
using linux-config-from-dt.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>