ARM: S5PV210: Add SROM controller clock

This patch adds the SROM controller clock to the list of clocks to be enabled at
boot time. It is required to be enabled at boot time since the modules connected
over the SROM interface such as the Ethernet controller need an operational SROM.

Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>