Merge 9bd1631103 into 8e9010a000

Bumps [com.github.mik3y:usb-serial-for-android](https://github.com/mik3y/usb-serial-for-android) from v3.8.0 to 3.8.1.
- [Release notes](https://github.com/mik3y/usb-serial-for-android/releases)
- [Changelog](https://github.com/mik3y/usb-serial-for-android/blob/master/CHANGELOG.txt)
- [Commits](https://github.com/mik3y/usb-serial-for-android/compare/v3.8.0...v3.8.1)

---
updated-dependencies:
- dependency-name: com.github.mik3y:usb-serial-for-android
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

android-mobile/build.gradle

@@ -28,7 +28,7 @@ apply plugin: 'com.android.application'
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.github.mik3y:usb-serial-for-android:v3.8.0'
+    implementation 'com.github.mik3y:usb-serial-for-android:3.8.1'
     implementation 'com.android.support:support-v4:28.0.0'
 }