radxa: enable dts support radxa cubie a5e#1916

Martinfx wants to merge 1 commit intofreebsd:mainfreebsd/freebsd-src:mainfrom

Martinfx:max-support-radxa-cubie-a5eMartinfx/freebsd-src:max-support-radxa-cubie-a5eCopy head branch name to clipboard