sched: Add snapshot of affinity changes

This snapshot is taken from msm-4.19 as of 'commit 5debecbe7195
("trace: filter out spurious preemption and IRQs disable traces")'.

Change-Id: I5b7bcbbc1da5dffb89932dfda392029159d17859
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>