0.3.0: jenkins-android-7.1-pine-a64-54

Changes:

• Upgrade Android to 7.1.2_r11,
• Use BSP 1.2 kernel (without backports): https://github.com/ayufan-pine64/linux-pine64: my-hacks-1.2,
• Fixes camera support,
• Fixes headphones support, enable on boot,
• Auto-generates wifi mac address,
• Allows accessing eMMC when booting from SD,

Currently, it only works on Pinebook.

https://jenkins.ayufan.eu/job/android-7.1-pine-a64/54/