arm64: tegra: unify the power dvfs between t210 platforms

arm64: tegra: unify the power dvfs between t210 platforms

Jetson use P2530/E2581 as the computer module. The power dvfs
should be same. If there is difference, it can be override on
the top dts. There is no need to maintain two power dvfs file
which are nearly the same.

Bug 200068955

Change-Id: Ie977e00263669b4eec63e1ba701ef691c812242e
Signed-off-by: Kerwin Wan <kerwinw@nvidia.com>
Reviewed-on: http://git-master/r/668379
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
Tested-by: Laxman Dewangan <ldewangan@nvidia.com>