linux-phytec-ti

ARM: dts: am335x-evmsk: add support for VTT Toggle

AM335x EVM-SK EVM provides s/w control via GPIO over the VTT regulator
to reduce power consumption in low power state.

Now that wkup_m3_ipc code provides an option to toggle VTT, add the
relevant DT property.

On AM335x EVM-SK EVM, VTT enable pin is connected to GPIO0 Pin 7.

Signed-off-by: Hebbar, Gururaja <gururaja.hebbar@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Keerthy <j-keerthy@ti.com>