Add missing arm64 simd build rules for libjpeg_turbo for GN

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")
@@ skipping 98 matching lines @@
     ]
     sources = [
       "simd/jsimd_x86_64.c",
     ]
   } else if (current_cpu == "arm" && arm_version >= 7 &&
              (arm_use_neon || arm_optionally_use_neon)) {
     sources = [
       "simd/jsimd_arm.c",
       "simd/jsimd_arm_neon.S",
     ]
+  } else if (current_cpu == "arm64") {
+    sources = [
+      "simd/jsimd_arm64.c",
+      "simd/jsimd_arm64_neon.S",
+    ]
   } else {
     sources = [
       "jsimd_none.c",
     ]
   }
 }
 
 config("libjpeg_config") {
   include_dirs = [ "." ]
 }
@@ skipping 71 matching lines @@
   # MemorySanitizer doesn't support assembly code, so keep it disabled in
   # MSan builds for now.
   if (is_msan) {
     sources += [ "jsimd_none.c" ]
   } else {
     deps = [
       ":simd",
     ]
   }
 }