arm64: tegra: Correct CPU compatibles on Tegra264

arm64: tegra: Correct CPU compatibles on Tegra264

"arm,armv8" CPU compatible is only for software models and must not be
used in DTS for actual hardware.  Replace them with Neoverse V3AE
compatible, based what is written on Wikipedia [1].

Link: https://en.wikipedia.org/wiki/Tegra#Thor
Reported-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Closes: https://lore.kernel.org/all/59ae6b16-7866-413a-a1d2-4a735024c108@oss.qualcomm.com/
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>