ARM: dt: tegra: ventana: define pinmux for ddc
ARM: dt: tegra: ventana: define pinmux for ddc

Tegra 2's I2C2 controller can be routed to either the PTA
or DDC pin group on Ventana. So:
- Remove the HDMI function definition of pta pingroup
- Define child i2c adapters(ddc & pta) for I2C2 controller

Signed-off-by: Mark Zhang <d0b0cfa77edd7eb83f8b477c09c00a6335d75e71@nvidia.com>
Signed-off-by: Stephen Warren <5ef2a23ba3aff51d1cfc8c113c1ec34b608b3b13@nvidia.com>

TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs