ARM: dts: gemini: Push down flash address/size cells
The platforms not defining any OF partions complain like
this:
../arch/arm/boot/dts/gemini.dtsi:19.25-28.5: Warning
(avoid_unnecessary_addr_size): /soc/flash@
30000000: unnecessary
#address-cells/#size-cells without "ranges" or child "reg" property
Get rid of this by only defining the address-cells and
size-cells where it is actually used by OF partitions.
Link: https://lore.kernel.org/r/20221204190230.3345590-1-linus.walleij@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>