[InstCombine] Relax and reorganize one use checks in the ~(a | b) & c

Since there is just a single check for LHS in ~(A | B) & C | ...
transforms and multiple RHS checks inside with more coming I am
removing m_OneUse checks for LHS and adding new checks for RHS.
This is non essential as long as there is total benefit.

In addition (~(A | B) & C) | (~(A | C) & B) --> (B ^ C) & ~A
checks were overly restrictive, it should be good without any
additional checks.

Differential Revision: https://reviews.llvm.org/D113141