msm: Update AVTimer Register Addresses for 8916

The AVTimer register addresses have changed on 8916.
Made corresponding changes to read from the correct
address values.

Change-Id: Iade76ef8d72523416021c84b4a51aaae049aa020
CRs-Fixed: 662177
Signed-off-by: Venu Yeshala <vyeshala@codeaurora.org>
Signed-off-by: Mohit Setia <msetia@codeaurora.org>