lk2nd 0.9.0

- Allow booting Linux in EL2 with https://github.com/msm8916-mainline/qhypstub
  This allows using virtualization (e.g. KVM in Linux).
- Make it possible to abuse some missing validation in Qualcomm's TrustZone firmware
  to load qhypstub even on devices with secure boot enabled.
  See: https://github.com/msm8916-mainline/qhypstub#devices-with-secure-boot
- Add "fastboot oem reboot-edl" to reboot to EDL mode
- Fix button keymaps on some devices
- Add many new devices
- First release with prebuilts for MSM8974 and MSM8226!

--- Supported devices ---
msm8916-secondary:
- Alcatel OneTouch Idol 3 (4.7) - 6039*
- Alcatel OneTouch Idol 3 (5.5) - 6045*
- Asus Zenfone 2 Laser (720p) - Z00L
- Asus Zenfone 2 Laser (1080p) - Z00T
- Asus Zenfone Max ZC550KL (2016) - Z010D
- BQ Aquaris X5 - paella, picmt
- DragonBoard 410c - apq8016-sbc
- HTC One M8s - m8qlul (quirky - see comment in `dts/msm8916/msm8939-htc-m8qlul.dts`)
- Huawei Ascend G7 - G7-L01
- Huawei Honor 5X - kiwi
- Lenovo A6000
- Lenovo A6010
- Lenovo PHAB Plus - PB1-770M, PB1-770N
- LG K10 (m216) - K420
- LG Leon LTE (c50) - H340, H342, H343, H345, MS345, etc
- LYF Wind 1 - ls5010
- Marshall London
- Motorola Moto E (2015) - surnia
- Motorola Moto G (2015) - osprey
- Motorola Moto G4 Play - harpia
- Samsung Galaxy A3 (2015) - SM-A300FU
- Samsung Galaxy A5 (2015) - SM-A500F, SM-A500FU
- Samsung Galaxy Core Prime LTE - SM-G360F
- Samsung Galaxy Grand Prime - SM-G530W
- Samsung Galaxy J3 (2016) - SM-J3109
- Samsung Galaxy J3 Pro - SM-J3110, SM-J3119
- Samsung Galaxy J5 (2015) - SM-J5008, SM-J500F, SM-J500FN, SM-J500H
- Samsung Galaxy J5 (2016) - SM-J5108, SM-J510F, SM-J510FN
- Samsung Galaxy J7 (2015) - SM-J7008, SM-J700P
- Samsung Galaxy On7 (2015) - SM-G6000
- Samsung Galaxy S4 Mini Value Edition - GT-I9195I
- Samsung Galaxy Tab 4 10.1 (2015) - SM-T533
- Samsung Galaxy Tab A 8.0 LTE (2015) - SM-T357W
- Samsung Galaxy Tab A 9.7 WiFi (2015) - SM-T550
- Vodafone Smart prime 6
- Wileyfox Swift - crackling
- Xiaomi Mi 4i - ferrari
- Xiaomi Redmi 2 - wt86047, wt88047
msm8974-secondary:
- LG G3 - D855
- Samsung Galaxy S5 - SM-G900F
msm8226-secondary:
- LG G Watch R - lenok