[mlir][LLVMIR] Add a support for boolean type arguments conversion

Summary:
Otherwise this will fail translating ops with boolean arguments and
added test will fail.

Reviewers: nicolasvasilache, rriddle

Subscribers: mehdi_amini, jpienaar, burmako, shauheen, antiagainst, arpith-jacob, mgester, lucyrfox, aartbik, liufengdb, Joonsoo, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D76159