Move sanitizer and symbol flags out of BUILDCONFIG

build/secondary/third_party/libjpeg_turbo/BUILD.gn

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Do not use the targets in this file unless you need a certain libjpeg
 # implementation. Use the meta target //third_party:jpeg instead.
 
+import("//build/config/sanitizers/sanitizers.gni")
 if (current_cpu == "arm") {
   import("//build/config/arm.gni")
 }
 
 if (current_cpu == "x86" || current_cpu == "x64") {
   import("//third_party/yasm/yasm_assemble.gni")
 
   yasm_assemble("simd_asm") {
     defines = []
 
@@ skipping 184 matching lines @@
   if (is_msan || is_linux) {
     sources += [ "jsimd_none.c" ]
   } else {
     deps = [
       ":simd",
     ]
   }
 
   # TODO(GYP): Compile the .asm files with YASM as GYP does.
 }