[sanitizer, android] Mark arch as tested before testing

We don't want to see device as unavailable if tests failed for a different reason
diff --git a/zorg/buildbot/builders/sanitizers/buildbot_android_functions.sh b/zorg/buildbot/builders/sanitizers/buildbot_android_functions.sh
index 033f808..824e209 100755
--- a/zorg/buildbot/builders/sanitizers/buildbot_android_functions.sh
+++ b/zorg/buildbot/builders/sanitizers/buildbot_android_functions.sh
@@ -149,10 +149,10 @@
     local _arch=${_arg%:*}
     local _abi=${_arg#*:}
     if [[ $ABILIST == *"$_abi"* ]]; then
+      echo "$_serial" >> tested_arch_$_arch
       BUILD_ID=$(${ADB} -s $_serial shell getprop ro.build.id | tr -d '\r')
       BUILD_FLAVOR=$(${ADB} -s $_serial shell getprop ro.build.flavor | tr -d '\r')
       test_arch_on_device "$_arch" "$_serial" "$BUILD_ID" "$BUILD_FLAVOR"
-      echo "$_serial" >> tested_arch_$_arch
     fi
   done
 }