goclever-gcta741l and lark-freeme-70-2s: new device

Goclever Orion 70L (Allwinner A31s) and Lark FreeMe 70.2S (Allwinner A10) tablets and preparation for one more.

This MR:

• adds armv7 arch to linux-postmarketos-allwinner
• updates it to latest 5.11 tag
• adds own u-boot package for 3 allwinner tables
• adds device tree for goclever to linux-postmarketos-allwinner
• adds panel driver for panel in goclever to linux-postmarketos-allwinner
• adds device tree for lark to linux-postmarketos-allwinner
• adds panel driver for panel in lark to linux-postmarketos-allwinner
• adds device packages for lark and goclever

GoClever wiki page
Lark wiki page