trace/sched: Fix compilation for 32 bit systems

do_div() expects the dividend to be a 64 bit type. We are passing
an unsigned long to do_div() from sched_load_avg_task and
sched_load_avg_cpu trace points. This breaks compilation on
a 32 bit system.

Change-Id: I9eb07dba1e62b68d5fc8d12e3f478b22c4ba5e0d
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>
Git-commit: a2ee4e794559cf2ba17dd19117d18787e7c2838d
Git-repo: https://android.googlesource.com/kernel/common/


[cslingutla@codeaurora.org: Fixed trivial merge conflicts]
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
[satyap@codeaurora.org: update sched_load_se trace point and fix
trivial merge conflicts]
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>