avx512: remove bogus imm8 for specific VCMP and VPCMP operations
avx512: remove bogus imm8 for specific VCMP and VPCMP operations

When using VCMP and VPCMP operations with the condition in the opcode,
we should not have an immediate operand!

Signed-off-by: H. Peter Anvin (Intel) <8a453bad9912ffe59bc0f0b8abe03df9be19379e@zytor.com>

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