redis 6.2 add a new feature: disable-thp

[Unknown256]

#################### KERNEL transparent hugepage CONTROL ######################

Usually the kernel Transparent Huge Pages control is set to "madvise" or

or "never" by default (/sys/kernel/mm/transparent_hugepage/enabled), in which

case this config has no effect. On systems in which it is set to "always",

redis will attempt to disable it specifically for the redis process in order

to avoid latency problems specifically with fork(2) and CoW.

If for some reason you prefer to keep it enabled, you can set this config to

"no" and the kernel global to "always".

disable-thp yes

It's very useful

[iamabhishek-dubey]

I think this can be externalized now with external config