kernel: Add snapshot of changes to support cpu isolation

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

Change-Id: I222aa448ac68f7365065f62dba9db94925da38a0
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>