riscv: dts: starfive: jh7110-common: revised device node

riscv: dts: starfive: jh7110-common: revised device node

Earlier this year a new DTSI file was created to define common
properties for the StarFive VisionFive 2 and Milk-V Mars boards,
both of which use the StarFive JH7110 SoC.  The Pine64 Star64
board has also been added since that time.

Some of the nodes defined in "jh7110-common.dtsi" are enabled in
that file because all of the boards including it "want" them
enabled.

An upcoming patch enables another JH7110 board, but for that
board not all of these common nodes should be enabled.  Prepare
for supporting the new board by avoiding enabling these nodes in
"jh7110-common.dtsi", and enable them instead in these files:
   jh7110-milkv-mars.dts
   jh7110-pine64-star64.dts
   jh7110-starfive-visionfive-2.dtsi

Signed-off-by: Alex Elder <elder@riscstar.com>
Signed-off-by: Guodong Xu <guodong@riscstar.com>
Reviewed-by: Emil Renner Berthing <emil.renner.berthing@canonical.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>