soc: qcom: glink: Change division types to uint64_t

The do_div function on arm architectures assumes values
passed in will be 64 bit type. Change arguments from
unsigned long to unit64_t.

Change-Id: I1af31602af9af5a9d67d214265ab2ac1f3e59813
Signed-off-by: Chris Lew <clew@codeaurora.org>