[ValueTracking] Add additional cases for `isKnownNonZero(mul X, Y)`

If either `X` or `Y` is odd and the other is non-zero, the result is
non-zero.

Alive2 Link:
    https://alive2.llvm.org/ce/z/9V7-es

Reviewed By: nikic

Differential Revision: https://reviews.llvm.org/D149418