Add support for the X1830 and fix bugs for X1000 v8.

From: åçæ (Zhou Yanjie)
Date: Wed May 13 2020 - 09:17:26 EST


v7->v8:
1.Rebase [3/6] on top of linux-next, because "ingenic,cgu.txt" has
been converted to "ingenic,cgu.yaml".