arm64: dts: exynos: gs101-oriole: configure simple-framebuffer

arm64: dts: exynos: gs101-oriole: configure simple-framebuffer

The bootloader configures the display hardware for a framebuffer at the
given address, let's add a simple-framebuffer node here until we get a
proper DRM driver.

This has several benefits since it's an OLED display:
* energy consumption goes down significantly, as it changes from white
  (as left by bootloader) to black (linux console), and we generally
  don't run out of battery anymore when plugged into a USB port
* less of a burn-in effect I assume
* phone stays cooler due to reduced energy consumption by display

Signed-off-by: André Draszik <andre.draszik@linaro.org>
Reviewed-by: Peter Griffin <peter.griffin@linaro.org>
Link: https://lore.kernel.org/r/20250117-gs101-simplefb-v4-2-a5b90ca2f917@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>