board: starfive: Update the maintainer file for VisionFive 2 board

Update the maintainer file and mark jh7110 / visionfive2 related files
with N: patterns.

Signed-off-by: Hal Feng <hal.feng@starfivetech.com>
Reviewed-by: Leo Yu-Chi Liang <ycliang@andestech.com>
1 file changed