[InstSimplify] Simplify bool icmp with not in LHS

Refer to https://llvm.org/PR52546.

Simplifies the following cases:
    not(X) == 0 -> X != 0 -> X
    not(X) <=u 0 -> X >u 0 -> X
    not(X) >=s 0 -> X <s 0 -> X
    not(X) != 1 -> X == 1 -> X
    not(X) <=u 1 -> X >=u 1 -> X
    not(X) >s 1 -> X <=s -1 -> X

Differential Revision: https://reviews.llvm.org/D114666