drivers: fix 32bit compilation for QPNP drivers

Use div_s64() for signed 64bit division with 32bit divider
and div64_s64() for signed 64bit division with 64bit divider.

CRs-Fixed: 2170745
Change-Id: I1dcf9e83ba492559df2a8b6be9484196f53d6193
Signed-off-by: Tirupathi Reddy <tirupath@codeaurora.org>