This ensures that if an app is installed in external storage, it continues to install it there, otherwise defaults to internal like existing behaviour. Ref: https://cs.android.com/android/platform/superproject/+/main:frameworks/base/core/java/com/android/internal/content/InstallLocationUtils.java;l=328 Signed-off-by: Aayush Gupta <aayushgupta219@gmail.com>