soc: qcom: dcc_v2: Add snapshot of the DCC v2 driver

This is a snapshot of the DCC_v2 driver as of msm-4.9
commit '6d001d53'.(" Fix offset calculation for linked
list") The second offset present as part of offset descriptor
needs to take into account the length of the first offset.
This patch fixes the current offset calculation to account for it.

Change-Id: Iac7463b759efd56b98aa92c594a46a76c3c8d208
Signed-off-by: Rama Aparna Mallavarapu <aparnam@codeaurora.org>