ARM: tegra: set up /aliases entries for RTCs

This ensures that the PMIC RTC provides the system time, rather than
the on-SoC RTC, which is not battery-backed.

tegra124-venice2.dts isn't touched yet since we haven't added any off-
SoC RTC device to its device tree.

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

diff --cc arch/arm/boot/dts/tegra114-dalmore.dts
Simple merge

diff --cc arch/arm/boot/dts/tegra20-colibri-512.dtsi
Simple merge

diff --cc arch/arm/boot/dts/tegra20-harmony.dts
Simple merge

diff --cc arch/arm/boot/dts/tegra20-paz00.dts
Simple merge

diff --cc arch/arm/boot/dts/tegra20-seaboard.dts
Simple merge

diff --cc arch/arm/boot/dts/tegra20-tamonten.dtsi
Simple merge

diff --cc arch/arm/boot/dts/tegra20-trimslice.dts
Simple merge

diff --cc arch/arm/boot/dts/tegra20-ventana.dts
Simple merge

diff --cc arch/arm/boot/dts/tegra20-whistler.dts
Simple merge

diff --cc arch/arm/boot/dts/tegra30-beaver.dts
Simple merge

diff --cc arch/arm/boot/dts/tegra30-cardhu.dtsi
Simple merge