Always include all viable libs in asan_device_setup.

Necessary for running arm builds on devices that support aarch64 and
arm.

Bug: 861509
Change-Id: I87bd1bdae3def36d35313436a7c6f2423532be25
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1622715
Auto-Submit: John Budorick <jbudorick@chromium.org>
Reviewed-by: Nico Weber <thakis@chromium.org>
Commit-Queue: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#662033}

tools/android/asan/third_party/BUILD.gn

@@ -13,9 +13,7 @@ generate_wrapper("asan_device_setup") {
 
   _lib_archs = []
 
-  if (target_cpu == "arm") {
-    _lib_archs += [ "arm" ]
-  } else if (target_cpu == "arm64") {
+  if (target_cpu == "arm" || target_cpu == "arm64") {
     _lib_archs += [
       "arm",
       "aarch64",