[AArch64][AsmParser] NFC: Generalize LogicalImm[Not](32|64) code

Summary:
All variants of isLogicalImm[Not](32|64) can be combined into a single templated function, same for printLogicalImm(32|64).
By making it use a template instead, further SVE patches can use it for other data types as well (e.g. 8, 16 bits).

Reviewers: fhahn, rengolin, aadg, echristo, kristof.beyls, samparker

Reviewed By: samparker

Subscribers: aemerson, javed.absar, llvm-commits

Differential Revision: https://reviews.llvm.org/D42294

llvm-svn: 323646