lk2nd 18.0

- msm8953 clocks are configured for both clusters on boot
- SD card support is enabled for msm8226 and msm8953
- LK2ND_DISPLAY is implemented again
- Added option to sign generated boot.img
- msm8974 watchdog is disabled on boot
- Various other minor fixes

New devices:
- Acer Liquid Z330 (acer-t01)
- Motorola Moto G5 (cedric)
- FarEasTone Smart 506
- Lenovo ThinkSmart View (CD-18781Y)
- BQ X5 Plus
- Samsung Galaxy Note 3
- Asus Zenfone 3 ZE520KL/ZE552KL (zenfone3)