arm64: dts: amlogic: meson-gx: add missing SCPI sensors compatible

Fixes:
scpi: sensors:compatible: 'oneOf' conditional failed, one must be fixed:
	['amlogic,meson-gxbb-scpi-sensors'] is too short
	'arm,scpi-sensors' was expected

Link: https://lore.kernel.org/r/20230124-b4-amlogic-bindings-fixups-v1-3-44351528957e@linaro.org


Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>