[LoongArch] Override TargetLowering::hasAndNotCompare()

Override hasAndNotCompare() to use more `ANDN` instead of using `AND`
and `NOT`.
This patch enables the following transforms:
(X & Y) == Y ---> (~X & Y) == 0
(X & Y) != Y ---> (~X & Y) != 0.

Differential Revision: https://reviews.llvm.org/D143037