soc/intel: deduplicate ACPI timer emulation

The code for enabling ACPI timer emulation is the same for the SoCs
APL, SKL, CNL, ICL, TGL, JSL and EHL. Deduplicate it by moving it to
common code.

Note: The ACPI timer emulation can only be used by SoCs with microcode
supporting CTC (Common Timer Copy) / ACPI timer emulation.

Change-Id: Ied4b312b6d53e80e71c55f4d1ca78a8cb2799793
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
---
M src/soc/intel/alderlake/cpu.c
M src/soc/intel/apollolake/Makefile.inc
M src/soc/intel/apollolake/include/soc/pm.h
M src/soc/intel/apollolake/pmutil.c
M src/soc/intel/cannonlake/cpu.c
M src/soc/intel/common/block/cpu/Makefile.inc
A src/soc/intel/common/block/cpu/pm_timer_emulation.c
M src/soc/intel/common/block/include/intelblocks/cpulib.h
M src/soc/intel/elkhartlake/cpu.c
M src/soc/intel/icelake/cpu.c
M src/soc/intel/jasperlake/cpu.c
M src/soc/intel/skylake/cpu.c
M src/soc/intel/tigerlake/cpu.c
13 files changed, 41 insertions(+), 169 deletions(-)