[gn] Add target flags to asmflags.

Reviewers: pcc, thakis

Subscribers: llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D58483

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@354618 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed