ARM: tegra: Add OF_DEV_AUXDATA for SLINK driver in board dt

Add OF_DEV_AUXDATA for slink driver for Tegra20 and Tegra30
board dt files.
Set the parent clock of slink controller to PLLP and configure
clock to 100MHz.

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

diff --cc arch/arm/mach-tegra/board-dt-tegra20.c
Simple merge

diff --cc arch/arm/mach-tegra/board-dt-tegra30.c
Simple merge