configs: meson64_android: Remove dtbo support

configs: meson64_android: Remove dtbo support

The device tree overlays are not part of the
Android Common Kernel code [1]

Historically, they existed to enable some Android specific
features but they have been removed.

Remove the dtbos logic since these files do no longer exist.

[1] https://android.googlesource.com/kernel/common/+/ac2ea0bb91a3b5f5e71eba66c441e58beca6767e/arch/arm64/boot/dts/amlogic/

Signed-off-by: Mattijs Korpershoek <mkorpershoek@baylibre.com>
Reviewed-by: Guillaume La Roque <glaroque@baylibre.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20241011-yukawa-aosp-parts-v1-2-7d74aa13ff8e@baylibre.com
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>