ARM: dts: msm: Add clock rates in camera node for all boards

Adding clock rates to camera node instead of statically
reading from sensor driver so that clock names and
rates can be read from camera node using common software on chip
API and if needed it can be overrided with the values obtained from
userspace sensor drivers.

Change-Id: Icf950194191cbd0887740d692bb88cc650430fb8
Signed-off-by: Sureshnaidu Laveti <lsuresh@codeaurora.org>