Add support for the X1830 and fix bugs for X1000 v6.

[周琰杰 (Zhou Yanjie) <zhouyanjie@xxxxxxxxxxxxxx>]

v5->v6:
1.Revert "pll_reg" to "reg" to minimize patch as Paul Cercueil's suggest.
2.Add missing part of X1830's CGU.
3.Add missing part of X1000's CGU.