arm64: dts: exynos: google: Add initial Oriole/pixel 6 board support

Add initial board support for the Pixel 6 phone code named Oriole. This
has been tested with a minimal busybox initramfs and boots to a shell.

Tested-by: Will McVicker <willmcvicker@google.com>
Reviewed-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Link: https://lore.kernel.org/r/20231211162331.435900-16-peter.griffin@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>