i2c: tegra: Add logic to support different register offsets

i2c: tegra: Add logic to support different register offsets

Tegra410 use different offsets for existing I2C registers, update
the logic to use appropriate offsets per SoC.

As the register offsets are now defined in the SoC-specific
tegra_i2c_regs structures, the tegra_i2c_reg_addr() function is no
longer needed to translate register offsets and has been removed.

Signed-off-by: Kartik Rajput <kkartik@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Link: https://lore.kernel.org/r/20260324055843.549808-3-kkartik@nvidia.com