memory: tegra: Add memory clients for Tegra234

Add few isochronous (ISO) and non-ISO memory clients. ISO clients have
guaranteed bandwidth requirement. PCIe clients added to the memory
client table represent each controller in Tegra234.

Signed-off-by: Sumit Gupta <sumitg@nvidia.com>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>