[CI] Fix CI's test for arm64-v8a (kivy#1977)

Author: opacam

.travis.yml

@@ -75,7 +75,7 @@ jobs:
       # overrides requirements to skip `peewee` pure python module, see:
       # https://github.com/kivy/python-for-android/issues/1263#issuecomment-390421054
       env:
-        COMMAND='. venv/bin/activate && cd testapps/ && python setup_testapp_python3_sqlite_openssl.py apk --sdk-dir $ANDROID_SDK_HOME --ndk-dir $ANDROID_NDK_HOME --requirements libffi,sdl2,pyjnius,kivy,python3,openssl,requests,sqlite3,setuptools' --arch=arm64-v8a
+        COMMAND='. venv/bin/activate && cd testapps/ && python setup_testapp_python3_sqlite_openssl.py apk --sdk-dir $ANDROID_SDK_HOME --ndk-dir $ANDROID_NDK_HOME --requirements libffi,sdl2,pyjnius,kivy,python3,openssl,requests,sqlite3,setuptools --arch=arm64-v8a'
     - <<: *testing
       name: Python 3 armeabi-v7a
       os: osx