ARM: tegra: add I2C controllers to Tegra124 DT

Tegra124 has 6 I2C controllers. The first 5 have identical configuration
to Tegra114, but the sixth obviously has different interrupt/... IDs.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
ARM: tegra: enable I2C controllers on Venice2

Enable all the I2C controllers that are wired up on Venice2. I don't
know the correct I2C bus clock rates, so set them all to a conservative
100KHz for now.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
WIP: HACK: try to get audio working on Venice2

This hangs the system on boot right now, because the AHUB driver hasn't
been modified for the new reset list in the HW.

Note: Also need to update tegra114.dtsi to remove stale AHUB clock entries.

Signed-off-by: Stephen Warren <swarren@nvidia.com>