10e8d4f6dddb0f9dc408c2f2bde8399b243a42ca
(ARM: mach-shmobile: r8a7779: Minimal setup using DT)
added I2C driver for DT, but it didn't add clock.
This patch adds missing clock for I2C
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>