x86/kvm: Expose TSX Suspend Load Tracking feature

TSX suspend load tracking instruction is supported by the Intel uarch
Sapphire Rapids. It aims to give a way to choose which memory accesses
do not need to be tracked in the TSX read set. It's availability is
indicated as CPUID.(EAX=7,ECX=0):EDX[bit 16].

Expose TSX Suspend Load Address Tracking feature in KVM CPUID, so KVM
could pass this information to guests and they can make use of this
feature accordingly.

Signed-off-by: Cathy Zhang <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Reviewed-by: Tony Luck <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]

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