Failure to boot on old cpus due to popcnt instruction. with xanmod 5.19.3+ 5.15.62+

[ovlx]

these commits https://github.com/xanmod/linux/commit/f96ae710ee713060cd14f0c8d5b81ffcee3047e7 https://github.com/xanmod/linux/commit/11ee0e35471cb4f3e76a34203f9f72e2ba38a1ee cause failure to boot on older cpus that lack the popcnt instruction( core 2 and older ) when building with generic x86-64 . removing -mpopcnt fixes it, no real reason for it to be there, since popcnt should be enabled with x86-64v2 anyway.