Fix tests Clang::Sema/statements.c and Clang::SemaTemplate/instantiate-expr-1.cpp when AArch64 is the default target.

Commit r213935 added additional validation of register constants/size for AArch64 and because these tests which contain Intel assembler the new validation caused these tests to fail when the default target is changed to an AArch64 target.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@214706 91177308-0d34-0410-b5e6-96231b3b80d8