lineage-v4

Update to latest AOSP changes
Fix Accents
Add Android Go/Gapps variant

v18

• Update to Android Security Patch level 2018-05-01
• Disable HW keystore MTK using trustedkernel
• Re-enable Huawei navigation keys (Thanks @luk1337 and OpenKirin team)
• Fixes android build version/security patch level (might lead to stuck on bootanimation some devices)
• Enable NightMode for everyone
• Enable automatic backlight with Huawei Mate 9 settings on Huawei devices
• Remove unnecessary warning on boot (if you still get it, it means it is useful, to tell me!)
• Include android.system.net.netd, fixes data connection for several Qualcomm devices