target/i386: Add new CPU model ClearwaterForest

According to table 1-2 in Intel Architecture Instruction Set Extensions
and Future Features (rev 056) [1], ClearwaterForest has the following new
features which have already been virtualized:

    - AVX-VNNI-INT16 CPUID.(EAX=7,ECX=1):EDX[bit 10]
    - SHA512 CPUID.(EAX=7,ECX=1):EAX[bit 0]
    - SM3 CPUID.(EAX=7,ECX=1):EAX[bit 1]
    - SM4 CPUID.(EAX=7,ECX=1):EAX[bit 2]

Add above features to new CPU model ClearwaterForest. Comparing with
SierraForest, ClearwaterForest bare-metal contains all features of
SierraForest-v2 CPU model and adds:

    - PREFETCHI CPUID.(EAX=7,ECX=1):EDX[bit 14]
    - DDPD_U CPUID.(EAX=7,ECX=2):EDX[bit 3]
    - BHI_NO IA32_ARCH_CAPABILITIES[bit 20]

Add above and all features of SierraForest-v2 CPU model to new CPU model
ClearwaterForest.

[1] https://cdrdv2.intel.com/v1/dl/getContent/671368

Tested-by: Xuelian Guo <xuelian.guo@intel.com>
Signed-off-by: Tao Su <tao1.su@linux.intel.com>
Reviewed-by: Zhao Liu <zhao1.liu@intel.com>
Link: https://lore.kernel.org/r/20250121020650.1899618-4-tao1.su@linux.intel.com
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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