qcom: cdsp: Compilation error fix for 32-bit kernel

This fixes below compilation error for 32bit kernel
build. Compiler reference __aeabi_uldivmod if there
is a 64bit divide or module. Change is to use div_u64
to fix this.

cdsprm.c: undefined reference to `__aeabi_uldivmod'.

Change-Id: Ie71def2c395490cdc739a1183e33e858381c8b3c
Signed-off-by: Lijuan Gao <lijuang@codeaurora.org>