i2c-msm-v2: add support for configurable divider values from dt

Enable support to configure high time and fs divider values from
the device tree. This helps the customer to override default values
to adjust for specific board needs.

CRs-Fixed: 728918
Change-Id: I6b4bec1020dcd8d2b16b36a574a42cf147d96820
Signed-off-by: Ankit Gupta <ankgupta@codeaurora.org>