!24 Intel SPR: intel_idle support

The intel_idle support patches for 5.10, especially for SPR C1E/C1 support.

Intel-kernel issue:
https://gitee.com/open_euler/dashboard?issue_id=I5BECY

New changes:

SnowRidge Cstate table
ICX C6 support
ICXD support
SCX c6
SPR support including C1E/C1 support

Test steps:

Check intel_idle is default driver on these x86 platforms and Cstate which is listed in /sys/devices/system/cpu/cpu0/cpuidle/state*/*
On SPR and C1E and C1 can be supported with new module argument intel_idle.preferred_cstates.