Initial Sapphire Rapids and Alder Lake support from ISA r40

Initial Sapphire Rapids and Alder Lake support from ISA r40

gcc/
	* common/config/i386/cpuinfo.h
	(get_intel_cpu): Handle sapphirerapids.
	* common/config/i386/i386-common.c
	(processor_names): Add sapphirerapids and alderlake.
	(processor_alias_table): Add sapphirerapids and alderlake.
	* common/config/i386/i386-cpuinfo.h
	(processor_subtypes): Add INTEL_COREI7_ALDERLAKE and
	INTEL_COREI7_ALDERLAKE.
	* config.gcc: Add -march=sapphirerapids and alderlake.
	* config/i386/driver-i386.c
	(host_detect_local_cpu) Handle sapphirerapids and alderlake.
	* config/i386/i386-c.c
	(ix86_target_macros_internal): Handle sapphirerapids and alderlake.
	* config/i386/i386-options.c
	(m_SAPPHIRERAPIDS) : Define.
	(m_ALDERLAKE): Ditto.
	(m_CORE_AVX512) : Add m_SAPPHIRERAPIDS.
	(processor_cost_table): Add sapphirerapids and alderlake.
	(ix86_option_override_internal) Handle PTA_WAITPKG, PTA_ENQCMD,
	PTA_CLDEMOTE, PTA_SERIALIZE, PTA_TSXLDTRK.
	* config/i386/i386.h
	(ix86_size_cost) : Define SAPPHIRERAPIDS and ALDERLAKE.
	(processor_type) : Add PROCESSOR_SAPPHIRERAPIDS and
	PROCESSOR_ALDERLAKE.
	(PTA_ENQCMD): New.
	(PTA_CLDEMOTE): Ditto.
	(PTA_SERIALIZE): Ditto.
	(PTA_TSXLDTRK): New.
	(PTA_SAPPHIRERAPIDS): Ditto.
	(PTA_ALDERLAKE): Ditto.
	(processor_type) : Add PROCESSOR_SAPPHIRERAPIDS and
	PROCESSOR_ALDERLAKE.
	* doc/extend.texi: Add sapphirerapids and alderlake.
	* doc/invoke.texi: Add sapphirerapids and alderlake.

gcc/testsuite/
	* gcc.target/i386/funcspec-56.inc: Handle new march.
	* g++.target/i386/mv16.C: Handle new march